Screenshots
Watch trailer on Steam ↗Stack Attack
Sleepy Fox Games · Published by Sleepy Fox Games · Official site ↗
2 user reviews — 100% positive (2 reviews) · 14 achievements
Last updated 28 Sept 2026
Stack Attack is a trip down nostalgia avenue. Taking the form of a fully Twitch integrated (Required) app, your chat attempts to gain the most caps by taking turns knocking down the stack and seeing which caps they can flip over. Increases chat engagement and, thus, algorithm response!
£3.39
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Indie, Simulation, Casual, Sports · 2025 · More under £5 games
Join the fun of Stack Attack, where your chat competes to flip caps by knocking down stacks. A casual simulation that boosts engagement and excitement through Twitch integration.
About this game
Stack Attack is a trip down nostalgia avenue.
Taking the form of a fully Twitch integrated (Required) app, your chat can start and join games. Using different, pre-defined throw techniques, they attempt to flip Caps over from knocking down the stack of Caps contributed to by everyone in the current game. For the sake of the in game "economy" you can define how many are contributed by players and by the game itself.
This encourages chat engagement and participation. More people involved means better algorithm response!
The game also fully supports custom coin graphics. Personalize it to your stream, your interests, the game you're currently playing, whatever you can think of!
To use, simply create a new element in your preferred streaming application. Ensure it has transparency enabled. Target Stack Attack and let it run in the background. Then, in game, be sure to link your Twitch account! Once that is done, you can click "Launch" on the main menu. Once in, Stack Attack can be left running in the background, or minimized. In chat, anyone can, then, type !throw to start or join a game. Once in, each player will contribute the specified number of Caps to the stack. If they choose !throw 1,2, or 3, it will change the angle which they throw from. The game will, then, rotate throws, one player at a time, until the stack is left with a defined minimum left unflipped. After each throw, any unflipped Caps are re-stacked and the round continues.
Players can use !stats to check their total cap amount and top three cap amounts (The game tracks total and duplicate caps per player)
!leaderboard will show the top three players and their total cap amounts
Corpo sounding jargon aside, I realize this is a SUPER niche game that the vast majority of people won't be able to use. It's more to break the seals of releasing a game on Steam to better allow my next game(s) to succeed. I do, genuinely, enjoy this game. However, if you don't stream on Twitch, literally don't purchase this.
Also, it may be "released" but that's because I'm not a fan of Early Access. I'm still actively going to patch and add any cool requested features. This game is VERY much going to be supported for a long time
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 or 11
- Processor: Existing
- Memory: 1 MB RAM
- Graphics: Hand Drawn or Better
- Storage: 154 MB available space
- Sound Card: Can and String
- VR Support: No need for VR
- Additional Notes: Twitch App
Recommended
- OS: Windows 10 and 11
- Processor: Spicy
- Memory: 1 MB RAM
- Graphics: One of those people that draws caricature on boardwalks
- Storage: 154 MB available space
- Sound Card: A ruler on the edge of a table
- VR Support: No need for VR
- Additional Notes: Chat Interaction
Supported Languages
Latest news
Patch NotesOfficial
Twitch Heartbeat and Cap Rarity
Hello world, I finally figured out why Stack Attack would occasionally become complacent to our chat commands. Turns out, if Twitch hears no communication for 10 or more minutes, it just assumes the app is devoid of existence and kills the connection. So I've added a heartbeat ping to keep it alive (Once per minute) Also, I've added a way to define rarity for caps. The naming system is getting a smidge convoluted, sorry, but basically, If you want to set rarity, on your _Albedo.png, INSTEAD, make it _#.#_Rarity Where #.# is a 0-1 value. You can absolutely get funky with negative numbers and numbers larger than 1 I'm not gonna stop you. It just might break things So, if you DON'T care for rarity, it will assume a value of 1 _Albedo.png (or .jpg if you're a savage) _Normal.png _Metallic.png If you DO want rarity for a certain cap _0.5_Rarity.png (Or any number 0-1) _Normal.png _Metallic.png In game, particle effects will appear around the cap when being displayed after flipped based on rarity. The values are: Uncommon: 0.1 (Green) Rare: 0.01 (Blue) Legendary: 0.001 (Gold) Enjoy Or don't. But I'd prefer if you did.Read full article on Community Announcements (Sleepy Fox Games)Patch NotesOfficial
Hotfix 1.0.0.0.0.1.0.1.2.7.x
They don't limit the version number so I'm just gonna be unhinged about it until it matters. Speaking of not limiting things, the game was hitting INSANE framerates and taking up to 70% of GPU power Yea, that was a dumb oversight on my part, my apologies. I've hard limited it to 60fps and vsync off. Might make that a setting but, honestly, I don't think this game needs to be that granular. Anyways, fix'd. Also, if you're seeing multiples of the planets, vanilla, and Sleep Fox collections, I'm sorry to put this on you but, it's a Steam Cloud issue from the previous version saving custom caps (So you can use different computers but have your custom caps across them all) And, when I cleaned up the StreamingAssets folder, Steam Cloud still has the old caps and reloads them. So, go to the local files for the game, then into the StackAttack_Data folder, then into StreamingAssets (This is where you'd add custom caps) Delete all but the example folder (The example folder is also safe to delete but you might want it if you want to make your own caps/smashers later) THEN, and this is the important bit, delete the steam_autocloud.vdf file This is what's re-adding the old data. Deleting it will trigger Steam to properly update the cloud save data and remove the old filesRead full article on Community Announcements (Sleepy Fox Games)Patch NotesOfficial
One Day Patch
It's not day one, and it's not a crazy event So it's the One Day Patch, instead. Long story short, I just completely forgot to implement the Picasso achievement (For adding your own, custom caps/smashers to the game) I've also cleaned up the StreamingAssets folder (Where you setup your custom caps) and included an example template. The folder structure must stay the same. The caps/smashers must have the same endings as the example (_albedo, _normal, _metallic). They don't have to have a normal nor metallic. Those two are optional. The albedo image is the actual color that is shown. So it's required. Even if blank. Otherwise, The name in preceding _albedo (and the others must match) is what's used to name the cap in game. The parent folder name is what's used to name the collection. I tried to make it as simple as possible. Once in game, it will automatically add a config file. For now, that only holds the data for whether the collection is active or not (Able to be checked and toggled in the Gallery view under the Settings in game) Might add extra functionality, might not. The "active" function is useful for things like seasonal caps or special stream events. If you want to do a Subathon or something with special caps. Those caps/smashers won't be removed from player's inventories if deactivated. They also won't be chosen for the tower. So players can keep the special caps without fear of losing them once the event is over.Read full article on Community Announcements (Sleepy Fox Games)Patch NotesOfficial
Gearing Up For Release!
Henlo frens. First off, thanks for existing. Thanks if you're seeing this. Thanks even if you're not, just... slightly less thanks than if you are seeing this. As the release date gets closer, I'm really monitoring bugs and gameplay to be sure it operates smoothly and presents enjoyable moments. I still need to finish the long list of default caps/smashers that are planned. Otherwise, it's ready for release >:D So, I've just pushed a new build that has some minor but important fixes The launch button should now reliably be "on" as long as chat is connected. (It was very hit or miss) Stats are now working. Steam's system is wonderful but a bit more rudimentary than I initially thought. Also, some minor back end crashes that were hard to notice. Basically, sometimes the game would stop responding to chat commands. That's now fixed. Please let me know if you find any other bugs. In all of the testing I did, I haven't found any more to squash, but I am just one sleepy fox. So I'm sure I've missed something. Anyways, that's all. A very uneventful event here. I'mma get back to drafting and polishing artwork for the caps. Let me know if you have any settings you want to see added.Read full article on Community Announcements (Sleepy Fox Games)
