Dungeon Defenders Propeller Cat Guide

Dungeon Defenders Propeller Cat Guide by Mang

Today we’ll examine Propeller Cats, and whether they’re the right choice for YOU in your journey to max your DPS.

The Idea:

While a seahorse spits poison at things, fairies heal you, and genies gives you a ton of mana, a propeller cat multiplies any damage you do with your hero, while only providing mediocre stats. Depending on various circumstances, a propeller cat can be a sub-optimal idea, or big time damage, and it’s not always as simple as “every barb should use a prop cat”.

A propeller cat can also be upgraded to buff other nearby heroes, and the damage that their pets do. This is a big deal for doing huge damage as a team.

Example Stats of a Prop Cat:

Here is a random prop cat with 117 boost, 90 range, and +1 heroes, as well as 245 upgrades and overall great stats. It is really quite nice, except for the lack of skill2.


A propeller cat’s boost can be upgraded every 3 levels (when (CurrentLevel-1)/3 returns a remainder of 1)), so on levels 2,5,8,11, etc. The easy way to figure out how many possible upgrade boosts is (MaxLevel-1)/3, rounded DOWN. If you want to leave the cat unnamed as well, then it’s (MaxLevel-2)/3, rounded DOWN.

So our example cat above will have exactly 81 opportunities to upgrade its boost, for an end result of 81+117 = 198 boost. That sure sounds nice, but WTF does that even mean? Big deeps? Sort of big deeps?

Whipping up the DunDef source code, the formula for the buff a propeller cat provides is as follows:

BaseBoost + ( BoostStatMultiplier*( ( EQS_CLIPAMMO / BoostStatBase ) ^ BoostStatExponent ) )


which boils down to


So here’s a nifty table of what this means for you:

Boost on your cat Your damage is multiplied by
50 1.411636207
75 1.537203984
100 1.655914441
125 1.769773278
150 1.879909404
175 1.987043109
200 2.091671889
210 2.132906634
220 2.173818531


Which shows pretty clearly that boost scales quite well! Just going from 200 to 210 boost is an extra 4% base damage. (An actual self increase of (2.1329/2.0917)-1 ~= 2%) which is like going from 4000 to ~4100 attack. This clearly demonstrates that even without buffing any other players, boost is far superior to hero attack.)

Our 198 boost cat from before will multiply our damage by 2.083, so more than double damage!


Our cat also has 90 range on it, which it spawned with (cats have a decent chance, perhaps 20%, to spawn at 90 range), and 90 is the cap, so we can’t spend any upgrades on it.

This range is how far a Propeller Cat will buff ANOTHER hero — the cat will always buff you, and technically the range of the propcat does not stem from the cat floating beside you, it is calculated from the center of your character. FYI, 90 range is about the distance from the NorthWest corner tavern dummy (the one that pets will actually shoot at) to the forge — pretty much the same range as Hero Boost — not super great, but tolerable.

You’re only allowed to upgrade range on every 4th upgrade level, so 3,7,11,15 etc. and your range ONLY matters if you have more than +1 heroes — YOU always count as that first hero, and there is 0 range between you and you.

+ Heroes:

Finally, our cat has +1 heroes, so far meaning it will always only buff the person equipping it. This can be upgraded every 30 levels (on level 29, 59, 89 etc) up to a max of +4. Because of the maths, this means you will always be choosing between a boost or a +hero on those upgrades — if the cat already has good range then you should seriously consider choosing this over boost, as providing 100% bonus damage to your nearby friend is probably a much bigger deal than ~0.4% more damage to yourself, regardless of how cool you think you are.

If you really only ever play solo, or if your cat has horrible range, or if you never expect to be near another player ever, or if you’re trying to lose the map on purpose, or if you’re simply a huge jerk, then feel free to ignore +heroes.

So… how do I get a Propeller Cat? :

Reach wave 25 on Sky City Survival to receive a propcat at the beginning of the Wave 25 build phase (i.e. complete wave 24). You can start on wave 23 and still receive it, and you can even pull in AFK characters after wave 24 has started (indeed, even seconds before you’re about to receive the prop cat) and you’ll still get one for each character. There is no other way in the game to receive a propcat, it is never a random reward at the end of a campaign, like many pets potentially are.

There are guides with builds all over this forum of how to set up to earn a propcat (even a 15min “box of devastation” wave 23 farm build that is quite good).

If it’s not on NM difficulty you have essentially zero chance of getting a propcat with over 70 boost at spawn. This is not a situation like Kobolds on a Treadmill where InsaneHC is the way to go, it’s NMHC or bust.

How to Upgrade:

The vast majority of the time, your upgrade priority will be heroes>boost>range>attack, and the pattern will look like this:
attack (range?)
attack (range?)
boost (range? probably not.)
attack (range?)
attack (range?)
boost (range? probably not.)
attack (range?)
+HERO (boost? selfish…)
attack (range?)

So eventually our example propcat above would end up at 195 boost, 90 range and +4 heroes, and the other 163 upgrades will end up going into attack, or whichever stat pleases you. This result is WAY better than just a 198 boost propcat with only +1 hero (which would be a tragedy), and I hope everyone realizes why.

Which characters benefit greatly from a PropCat? :

Well, anyone who personally does a lot of damage, whether with their weapons or directly with damage skills (i.e. not just hero or tower boost, but something like Hawk Stance or Piercing Shot).

The classic example of huge benefit from a propcat is with a Barbarian, because they have excellent personal damage, and doing double damage is very often much better than equipping a 20k seahorse, primarily due to the double-weapon slash multiplier, and Hawk Stance.

While a Jester has no real damage skills or special multipliers, if you have a great weapon, you still might do more damage with a propcat than with a seahorse, and it can potentially be focused, long-range damage, while a mere seahorse would just spit at random nearby things like it has ADHD. Fighting Cupid, for example, you’ll almost certainly prefer a propcat or a monkey over a seahorse, due to the bad range / spread of the seahorse.

Most people say that Monk+Seahorse is a godly combo due to Hero Boost, and that is generally very true. It is also true that Hero Boost stacks with the buff from a Propeller Cat, but realistically it is far far easier to get a mediocre seahorse that will provide more personal DPS than even the best Propeller Cat, regardless of your stats or weapon.

However, there is the specific circumstance where you build your monk to focus very heavily on Hero Boost (priority even more than attack) in which case you can be the team’s propcat wielder also, providing all of the team’s buffs for them, and allowing the very high ATK heroes use legit damage pets. In an organized team setup, this may very well be the most optimal team DPS setup, assuming everyone will fight near the ultra-boost Monk.

[This is a pretty legit idea for a not-super geared player to get into high level games easily, as you will make other more geared players do enormous amounts of damage, and allow them to use damage pets rather than propcats. Any team that turns down a monk with like 2.5k hero boost and a 150+ prop cat with 90 range and +4 heroes, is a pretty stupid team.]

We have an organized team – just use 1 prop cat? :

If the map requires huge DPS at one specific point in time AND everyone will be very near to each other (Akatiti boss comes to mind) then you can absolutely just run one prop cat, as long as it has decent range and +4 heroes.

To be truly optimal, the person least suited to use a damage pet should use the prop cat (like a dedicated boost monk, a summoner, or someone with low hero atk and no self boost like Blood Rage, which would buff a damage pet), and everyone else should use their best damage pets (likely seahorses). It’s unlikely that random pickup groups are gonna swap pets around, so this is really meant for organized teams or a solo player with AFK alts.

If there are multiple areas that need big DPS at the same time, you might still want to run more than one Propeller Cat, but it depends on the heroes and their gear and stats how to maximize the DPS.


The buff from a prop cat multiplies your hero’s damage (including any damage from a pet), which stacks multiplicatively with Hero Boost. A prop cat by itself can provide more than double damage, but stacked with super high tier hero boost can be over 9 times unbuffed damage.

DamageMultiplier = (((TheBoostOnYourCat/20)^0.835)*0.145)+1.1

The most important stats on a prop cat are the boost, range, and max upgrades. The hero stats are less important.

Upgrade priority is generally +heroes > boost > range > attack. But if you have justification, you could ignore range and +heroes entirely.

If there are least 2 DPS heroes, one of them should DEFINITELY have a prop cat with at least +2 heroes stat on it, and as much boost as possible. If they don’t plan on spending much time near each other, they BOTH might want propeller cats.

While prop cats help Barbarians the most, it’s even better if the worst damage-pet-user holds it (as long as they stay near the Barbarian), as a seahorse would do more damage coming from the high atk hero.

If there are X heroes fighting near each other, the optimal setup would be:
1 x dedicated boost monk + prop cat — high hero boost, high propeller cat boost
(X-1) x damage dealer + seahorse or other damage pet — high attack (and relevant damage skill stat)

Hope you learned something today!

Other Dungeon Defenders Articles
PlayerUnknown’s Battlegrounds Useful Tips
Stellaris Beating The Contingency Guide
Overwatch D.Va Micro Missiles Guide
Destiny Legendary Guns Comprehensive Guide
Destiny Savathun’s Song Nightfall Guide
Destiny Ghost Shell List By Type and Location
Starting To Dress Well In-Depth Guide
How To Grow Any Instagram Account Guide
Mobile Legends Split Pushing Guide
Mobile Legends Outplaying Your Opponent Guide
Mobile Legends Using Skeleton King Effectively Guide
Mobile Legends Advanced and Hidden Mechanics
Mobile Legends Items And Stats List
Mobile Legends Zhao Yun Guide
Mobile Legends Yi Sun-Shin AP/ADC Hybrid Guide
Mobile Legends Tigreal Guide
Mobile Legends Tigreal Tips and Builds
Mobile Legends Saber Tips
Mobile Legends Saber Guide
Mobile Legends Ruby Glorious Legends Guide
Mobile Legends Ruby Tank Build Guide
Mobile Legends Ruby Guide
Mobile Legends Ruby Tips
Mobile Legends Roger Guide
Mobile Legends Rafaela Basics and Fun Builds Guide
Mobile Legends Rafaela Tips
Mobile Legends Rafaela Ice Build Guide
Mobile Legends Natalia Solo Queue Guide
Mobile Legends Nana AD Carry Build
Mobile Legends Nana Support Build
Mobile Legends Moskov GL Guide
Mobile Legends Moskov Guide
Mobile Legends Miya Solo Q Carry Guide
Mobile Legends Minotaur Guide
Mobile Legends Lolita Guide
Mobile Legends Layla GL Guide
Mobile Legends Karina Guide
Mobile Legends Kagura Guide
Mobile Legends Johnson Guide
Mobile Legends Harley Quick Guide
Mobile Legends Gord Build
Mobile Legends Franco Guide
Mobile Legends Fanny Tips
Mobile Legends Fanny Hybrid Guide
Mobile Legends Eudora Epic Guide
Mobile Legends Eudora Guide
Mobile Legends Estes Guide
Mobile Legends Jungle Cyclops Fast Guide
Mobile Legends Cyclops Legend Guide
Mobile Legends Clint Guide
Mobile Legends Chou Legend In-depth Guide
Mobile Legends Chou Legend Guide
Mobile Legends Bruno Build Guide
Mobile Legends Bane Guide
Mobile Legends Alucard Rank Burst Build Guide
Mobile Legends Alucard Guide
Mobile Legends Alice Guide
Mobile Legends Alpha Guide
Mobile Legends Solo Q Guide
Mobile Legends How to Climb the Ladder Guide
Mobile Legends Solo Ranked to GL Guide
Mobile Legends Marksmen Tips
Mobile Legends Useful Tips
Mobile Legends New Player Mistakes to Avoid
Mobile Legends Tips for Ranked Games
Mobile Legends Basic Tips and Guide to Playing Better
Mobile Legends Lane Management Guide
Mobile Legends Picking Your Main Role Guide
Mobile Legends Team Composition and Set Up Guide
Clash Royale Ladder Climbing Psychology Guide
Clash Royale Sparkynado Guide
Fortnite Character Tier List
Vainglory Reaching Bronze Guide
Clash Royale Spell Bait Deck Guide
Clash Royale Princess Ultimate Guide
PlayerUnknown’s Battlegrounds Hidden Mechanics and Tips
Clash Royale Cannon Cart Guide
Overwatch Soldier 76 Training Complete Resources List
PlayerUnknown’s Battlegrounds Solo Guide from Rank 500 Player
CS:GO Max FPS Nvidia 3D Settings
Overwatch D.va Self Destruct Detailed Guide
Overwatch Finding the Correct Sensitivity Guide
Overwatch Aiming Better Complete Guide
Overwatch Choosing Crosshairs Guide
Albion Online PvP Combat and Weapons T4 Transition Guide
Albion Online Mage Weapons Guide
Albion Online Warrior Weapons Guide
Albion Online Hunter Weapons Guide
Rocket League Skills Needed To Rank Up To Gold
Albion Online Gathering Complete Guide
Albion Online Gathering Beginner to Expert Tips
PlayerUnknown’s Battlegrounds Solo Player’s In-Depth Guide
Overwatch Playing With Sombra On Your Team Guide
League of Legends Riven Kit and Combos Complete Guide
Clash Royale Terminology and Dictionary
Overwatch Grandmaster Roadhog Guide
Overwatch Sombra Tips and Guide
Vainglory Heroes and Roles Guide
Brawl Stars Bo Guide
Mobile Legends Lapu-Lapu Best Build Guide
World of Warships Yorck Guide
Brawl Stars Beginner’s Guide
Clash Royale How to Datamine Guide
Clash Royale The Log In-depth Guide
Clash Royale Trophy Pushing and Tilt Avoiding Guide
Clash Royale Snowballing Strategy Guide
Overwatch D.Va Advanced Guide
World of Warships Operations 5 Stars Guide
Overwatch Beating Legendary Uprising Full Guide
Overwatch Headshot Hitbox Guide
CS:GO Being An In Game Leader (IGL) Guide
CS:GO Improving For All Players In Depth Guide
Overwatch Pharah Rocket Aiming and Predictions Guide
Overwatch Pharah Target Priorities Guide
Clash Royale Knight In Depth Guide
How To Pay Less For Clothes Guide
Light Jackets Comprehensive Men’s Fashion Guide
World of Warships Torpedo Reaction Time List
Clash Royale Using Off Meta Decks Guide
Clash Royale Freeze Spell Ultimate Guide
Clash Royale EsoPa Miner Poison Deck Guide
Clash Royale Macro Play and Decision Making Guide
Clash Royale Why Are Low Elixir Cost Cards ‘Better’?
Clash Royale Lane Sealing Guide
Clash Royale Card Synergies Ultimate Guide
Clash Royale Building A Draft Challenge Deck for 12 Wins
Overwatch Winston Complete Guide
Steam How to Download Older Versions Of Games
Yu-Gi-Oh! Flower Cardians Guide
World of Warships New Captain Skills Guide
Overwatch Zenyatta In-Depth Guide
Heroes of the Storm Alarak Guide
Heroes of the Storm Nazeebo Guide
Heroes of the Storm Lucio Beginner’s Guide
Pokemon Go Defeating Blissey Guide
FIFA 17 Getting One Million Coins Guide
FIFA 17 Bronze Pack Method Guide
Overwatch Pharah Tips Versus Hit Scans
Clash Royale Graveyard Basic Guide
Overwatch Sombra Map Viability Guide
Overwatch Using Whole Hog Guide
Battlefield 1 Tanker Tips and Tricks
FIFA 17 Useful Tips for All Players
Pokemon Sun and Moon Breeding Shiny Pokemon Guide
Overwatch Why You Are Not Getting Healed
Clash Royale Lane Pressure Comprehensive Guide
Clash Royale Countering Graveyard Freeze Combo Guide
Clash Royale Pekka Guide
Overwatch Advanced Tips from a Master Player
Clash Royale Bomber Guide
Clash Royale Goblin Barrel Guide
Overwatch Working With Your Healers Guide
Battlefield 1 Medic Guns Guide
FFXIV Savage Raiding Tips
Puzzle & Dragons Radar Dragons Guide
RuneScape Merching Guide
Pokemon Sun and Moon Post Game Activities List
Pokemon Sun and Moon Competitive Breeding Guide
Overwatch 3v3 Mode Comprehensive Guide
MapleStory V Matrix Optimization Guide for All Classes
LoL AD Carry Laning Tips
Clash Royale Deck Building Tips from Pros
Heroes of the Storm Tips for Ranked Play
Pokemon Go Tips for Playing More Efficiently
Overwatch Roadhog In-Depth Guide
Heroes of the Storm Abathur Advanced Tips
Heroes of the Storm Common Hero Mistakes
Overwatch Roadhog Tips and Tricks
Paragon Jungling Tips
Paragon Countess Build and Guide
LoL Leaguecraft 101 Summaries
Pokemon Sun and Moon Poke Pelago Comprehensive Guide
LoL How To Un-tilt Yourself Guide
Clash Royale Inferno Dragon Strategy Guide
Clash Royale Counter Elite Barbarians Guide
Battlefield 1 Destroying Heavy Tanks Guide
Clash Royale Electro Wizard Challenge Tips
Paragon Carry Role Murdock Guide
Paragon Countess Ability Penetration Guide
Paragon Bronze To Top 100 Advice
Paragon Complete Cards List
Paragon Ward Placement Guide
Pokemon Sun and Moon Making Most of Festival Plaza
Heroes of the Storm Rexxar Guide
Heroes of the Storm Climbing Out of Low Ranks Guide
Heroes of the Storm Zarya Comprehensive Guide
Pokemon Sun and Moon Island Scan Guide
Pokemon Sun and Moon Festival Plaza Guide
Pokemon Sun and Moon Bottle Cap Farming Guide
Pokemon Sun and Moon Get a Salamence In The Beginning Guide
Pokemon Sun and Moon Getting Perfect Chaining Smeargle Guide
Pokemon Sun and Moon Level to 100 in 2 Hours Guide
Pokemon Sun and Moon High Levels Experience Guide
Guild Wars 2 Ascended Gearing Guide
Dota 2 Playing A Good Support Early Game Guide
Dota 2 Support’s Items Complete Guide
Clash Royale Furnace Complete Guide
Clash Royale Graveyard Comprehensive Guide
CS:GO Becoming A Smarter Player Guide
Heroes of the Storm Map Strategies
Clash Royale Miner Complete Guide
Heroes of the Storm How To Lane Guide
Heroes of the Storm Beginner’s Complete Guide
Overwatch Junkrat Team Oriented Play Guide
Clash Royale Lava Hound Basic Guide
Overwatch Carrying As Support Guide
Battlefield 1 Important Tips
Overwatch Hero Meta Tier List
Rocket League Offensive Positioning and Rotation Guide
Repairing Your Credit Score Guide
Pokemon Sun and Moon Demo All Obtainable Items Guide
Destiny Skeleton Key Chest Loot Chart
Destiny PvP Guide to Getting Good
Destiny Heroic Wrath of the Machine Easy Guide
Overwatch Mercy In-Depth Guide
Dragon Nest What To Do After Level 93
Dragon Nest Leveling 1 to 93 Guide
Dragon Nest What Class to Play Guide
Elite Dangerous Weapon Damage Stats List
Elite Dangerous Fixed Weapons Guide
Elite Dangerous Circle Strafing Guide
Heroes of the Storm Low Tier Ranked Climbing Guide
Destiny Light Level Boosting Caps List
WoW Legion Mythic Dungeons Tips and Guide
WoW Legion Classes Overview Which to Pick Guide
Path of Exile Identifying Valuable Items Guide
LoL Vi Advanced Tips and Tricks
Yu-Gi-Oh! Ojamas Guide
War Thunder Best Tier 4 Grinders Guide
Duelyst Swarm Abyssian Guide
Duelyst Solo Challenge Solutions Guide
Duelyst Budget Lilithe Decklist and Guide
Duelyst Backstabhai S-Rank Deck Guide
Clash Royale Musketeer and Ice Spirit Techniques and Combos
Clash Royale Ice Golem Advanced Techniques and Combos
Overwatch Peripherals, Settings and Posture Guide
Overwatch Streamers To Watch for Each Hero
Destiny Power Level Past 365 Light Guide
Osu! Improving Yourself Guide
Destiny 365 Light Without Fireteam Guide
Evolve Competitive Perks Setup For All Roles
Evolve Hunter Tips and Advice
Evolve Assault Competitive Perks Guide
Pokemon Go Getting Maximum Coins From Gyms Guide
Clash Royale Giant Bowler Decks and Counters Guide
Clash Royale Lava Hound Ultimate Guide
Clash Royale How to Use Every Legendary Guide
Clash Royale Mega Minion Guide
Clash Royale Inferno Dragon Guide
Rocket League Ground Dribbling and Flicks Guide
Hearthstone How to Practice Effectively Guide
Destiny Wrath of the Machine Loot and Locations Guide
Destiny Wrath of the Machine Comprehensive Guide
Overwatch Lucio Healing Guide
SWTOR Warzone Mechanics Guide
Black Desert Online Grind Spots Etiquette Guide
MH Generations Monster Drops Getting What You Want Guide
Overwatch Playing Against Mei Guide
Overwatch Zarya Energy Guide
Pokemon Go Important Tips Guide
Overwatch Ana Healing Guide
Pokemon Go Countering Less Common Gym Defenders
Pokemon Go Countering Dragonite and Snorlax
Pokemon Go Base Catch and Flee Rates
Destiny Reputation Guide for Leveling
Summoners War Trial of Ascension Full Guide
SMITE Xing Tian’s Mountain Guide
War Thunder Flight Energy Guide
Clash Royale Sparky Elixir Management Guide
Overwatch Getting Good with Reinhardt Guide
Clash Royale Ice Spirit Strategy Guide
Overwatch Achievement Guide
Overwatch Healing Guide
Pokemon Go Weave DPS Best Movesets Guide
Pokemon Go Countering Grass Type Gym Defenders
Clash Royale All Tank Units Guide
Pokemon Go Holding Gyms For 5 Days Guide
Overwatch Lucio Speed Buff Guide
Overwatch Bastion Tips
Clash Royale Log Spell Guide
Pokemon Go Countering Water Type Gym Defenders
Pokemon Go Countering Fire Type Gym Defenders
Pokemon Go Buddy System Distance Per Candy List
Clash Royale Using Each Card on Defense Guide
Overwatch Genji Dragonblade Guide
Overwatch Reinhardt Guide
Overwatch Being Nano-Boosted by Ana Guide
Overwatch Mercy Detailed Guide
Evolve Renegade Abe Guide
Monster Hunter X Switch Axe Combo DPS Guide
Monster Hunter X Switch Axe Infinite Burst Combo Guide
Evolve Assault Unlock Priorities Guide
Evolve Support Unlock Priorities Guide
Evolve Medic Unlock Priorities Guide
Evolve Jack Guide
Black Desert Online Kunoichi PvP Guide
Brave Frontier Endless FG Guide
Overwatch Competitive Play Guide
Overwatch Pharah Beginner’s Guide
Clash Royale Sparky Troop Countering Strategies Guide

Leave a Reply