Two mobile games, built in-house.
Kosti is a dark-fantasy 3D action game rooted in Slavic folklore. Block Nook is a cozy block puzzle. Both are our own games, built in Godot 4 for Android phones, with AI tools across the art, 3D and voice pipeline.
In-house products · pre-launch
- Engine
- Godot 4.6 · GDScript
- Platform
- Android phones
- Kosti
- 3D action survivor
- Block Nook
- Cozy block puzzle
The problem
Console-style ambition on mid-range phones
We wanted two very different games to feel premium on the phones most people actually own, not only on flagships. A 3D game with hordes of enemies, bosses and painted worlds has to stay smooth on a mid-range Android phone. A casual puzzle has to look polished on every screen and give players a reason to come back tomorrow. And a small team has to produce the art, 3D models and voice-over that larger studios split across departments.
What we built
Kosti: a 3D action survivor
A top-down survivor game in the style of Vampire Survivors and Survivor.io: auto-aim, a virtual joystick and waves of enemies, set in Slavic folklore.
- Four heroes, each with their own weapons and story: Ilya Muromets (bow and hammer), Vasilisa the Wise (magic and potions), Alyosha Popovich (gusli sound waves and spear) and Dobrynya Nikitich (sword and shield).
- Four bosses with phases: Zmey Gorynych, Volkodlak, Tugarin and Koschei the Deathless, across four chapters from the Dark Oak Forest to Buyan Island.
- Meta-game: a Weapon Hall and Forge for upgrades, and an outpost base with buildings, levels and build timers.
- Three languages (English, Russian and Spanish) for text and character voice-over.
Concept art: the look we are building toward
AI-assisted concept art showing the target visual style. Not screenshots of the current build.
In the game today
Gameplay screenshots are from a Russian-language test build.
How we kept it smooth
- Godot's Compatibility renderer, which runs on a wide range of Android GPUs, with Low and High quality tiers.
- Lighter stand-in enemy models on the Low quality tier, so big waves stay playable on weaker GPUs.
- GPU texture compression and an asset cleanup, which together cut the Android test build from 651 MB to 273 MB.
- Testing on a budget Android phone as the minimum device, with mid-range phones as the target.
Block Nook: a cozy block puzzle
A block puzzle in the style of Block Blast, on an 8×8 board, where the blocks are little characters with faces. It is built for short daily sessions.
- A museum meta-game: players restore a gallery and collect paintings as they play.
- Daily challenge with a calendar and streaks, quests, levels and power-ups.
- Block skins and a shop.
- A premium interface built on our own "Gilded Gallery" design system, reskinned screen by screen from concept art to the live engine.
- Rewarded and interstitial ads are integrated for the free-to-play release.
How it is built
AI does the heavy lifting on production: 3D models and rigs from text and images, concept and interface art, and voice lines in three languages. We direct the style, fix what the tools get wrong and check every asset in the engine before it ships. Kosti's code is about 17,000 lines of GDScript in its main game script plus separate data modules.
Both games are in development and not yet released in the app stores, so there are no download or rating figures here.
We can build this for you
We make mobile games from concept to store, plus smaller games for brands: advergames, playable campaigns and games inside Telegram. Mobile games start from $25,000, Telegram Mini App games from $10,000 and branded mini-games from $8,000, with a fixed quote before we start.