Screenshots
Watch trailer on Steam ↗StacKit
3amSoo · Published by Jungle Game Lab
Very Positive — 92% positive (51 reviews) · 5 achievements
Last updated 28 Sept 2026
StacKit is a turn-based puzzle of pure strategy. Load your gun in a precise order before you fight—this is your 'Stack'. Once in combat, your firing sequence is locked. Use Fire to strip armor, then hit with Corrosion to weaken foes and boost all other damage.
Indie, Free To Play, Strategy, Casual · 2025 · More free games
Unleash strategic prowess by sequencing your gun's ammo load—Fire first to strip armor, then Corrosion for weakened enemies—in this turn-based puzzle from the indie studio 3amSoo.
About this game
Welcome to a turn-based, tactical 3D shooter where your mind is your greatest weapon. You are a lone survivor, fighting your way out of a high-security facility after stealing a powerful secret. Every machine in this automated fortress is hunting you down. Brute force won't save you—survival depends on your ability to outwit the AI, one strategic turn at a time.
The key to your escape is the 'Stack'. Before each encounter, you'll fabricate bullet and load your ammunition. The fate lies not in what you fabricate, but in the precise order you load it in. This sequence is your battle plan. Will you start your turn with a Fire round to melt armor, follow with a Corrosion round to expose a weakness, and then finish with a Basic round? The battlefield is a puzzle, and your Stack is the key.
This is a battle of wits, not reflexes. Analyze the battlefield, predict enemy actions, and execute the perfect sequence of shots from your Stack to neutralize robotic threats and control the fight.
Your journey is a calculated cycle: Shop to build your arsenal, Plan your Stack for the upcoming fight, and Battle through turn-based encounters. Each cleared room brings you one step closer to freedom.
Face a diverse army of robotic sentinels, from nimble drones to heavily armored security units. You must adapt your tactics and fine-tune your Stack to counter every new challenge the AI throws at you.
Immerse yourself in a cold, post-apocalyptic world brought to life with 3D graphics. This is a pure, focused tactical experience—just you, your weapon, and a series of complex combat puzzles to solve.
Can you devise the perfect strategy and dismantle the machine to win your freedom?
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7, 8, 10 or later, 64 Bit
- Processor: Intel Core i3 / AMD Phenom II X4
- Memory: 4 GB RAM
- Graphics: GeForce GTX 750
- DirectX: Version 11
- Storage: 768 MB available space
Recommended
- Requires a 64-bit processor and operating system
- Memory: 6 GB RAM
- Graphics: GeForce GTX 1060
Supported Languages
Latest news
AnnouncementsOfficial
8 New Indie Titles Arriving Free on Steam this February 5
The Jungle Game Lab Class 4 presents 8 unique projects, each built from the ground up during a high-velocity 9-week development cycle. From Cyberpunk Narrative Puzzle to Turn-based Top-down Shooter, these games represent the first leap of 31 creators into the global market. Explore these 8 distinct worlds for free, and help shape the future of these developers by adding them to your Wishlist and sharing your honest feedback through reviews. Your play sessions are the final, most crucial stage of our development. https://store.steampowered.com/app/4270390/D1ALogue/ https://store.steampowered.com/app/4270800/No_Mana_Just_Dice/ https://store.steampowered.com/app/4311000/_/ https://store.steampowered.com/app/4267840/Be_Queen_Bee/ https://store.steampowered.com/app/4270630/In_My_Bubble_o/ https://store.steampowered.com/app/4314560/Cartapli__Fold_Quest/ https://store.steampowered.com/app/4311010/EXECUTOR/ https://store.steampowered.com/app/4314550/Spacetime_Shooter/Read full article on Community Announcements (Jungle Game Lab)Patch NotesOfficial
Patch Notes – July 31, 2025
Thank you for playing our game!Here are the details of this patch:Challenge Stages Added!8 new challenge stages have been added.Challenge stages become available after clearing the main game.New and Updated Stages3 new stages have been added.1 existing stage has been updated.Faster, Clearer Combat and Feedback!The battle UI has been significantly improved.Read full article on Community Announcements (Mireene)Patch NotesOfficial
[Notice] Update Schedule Announcement
\ Update DetailsHello, and thank you to all players for enjoying StacKit. We’re here to share details about the upcoming update.■ Update DetailsReduced unnecessary effects to enhance game pacingModified stage progression by changing existing stages and adding new stages.New content (Challenge Stage)2025-08-01 (UTC - 02:00)Thank you.Read full article on Community Announcements (Mireene)Patch NotesOfficial
Patch Notes – July 26, 2025
Thank you for playing our game!Here are the patch notes:Fixed a bug where moving the mouse continuously upward caused the view to rotate 360 degreesUpdated the description for the Surge bulletAdded support for \ and \ resolutionsRead full article on Community Announcements (JayKMin)AnnouncementsOfficial
[Notice] In-Game Data Collection Information
Hello, this is Team 3amSoo.First of all, thank you for playing our game.To provide a better gameplay experience, we collect the following in-game data:Data CollectedPlaytimeStage completion statusBullet usage dataCollection Period July 25, 2025 – August 3, 2025The collected data is used solely for improving the game and debugging. No personal information is collected.For more details, please refer to our Privacy Policy at the link below:Privacy PolicyRead full article on Community Announcements (JayKMin)
