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MUTATE YOUR BULLET. FLAP, EVOLVE, SURVIVE.

THE KULKA is a one-button bullet-heaven arcade roguelite where your single shot slowly mutates into pure neon chaos. Imagine Flappy Bird colliding with Vampire Survivors.

Tap to flap like in a classic flappy game, dodge walls of enemies and stack bullet upgrades until the screen explodes in colour.

Fast, focused and replayable – built for tight controls, punchy sound, online leaderboards, challenges and that “one more run” feeling.

CORE LOOP

  • Tap or click to flap and keep your orb in the air.

  • Your shot fires automatically – destroy enemies to earn XP gems.

  • Level up and choose an upgrade to mutate your bullet.

  • Survive as long as you can, then try to beat your high score – locally or on global leaderboards.

At first it’s just you, one bullet and a handful of enemies. A few levels later the screen is full of bouncing, splitting, homing, exploding shots – and you’re trying to squeeze through the chaos with a single button.

KEY FEATURES

  • One-button gameplay – easy to pick up, hard to master. You only control vertical movement, but every flap matters.

  • Bullet mutation system – every level-up adds new behaviour to your shot: split, ricochet, pierce, homing, explosions, lightning, lasers, novas and more.

  • Tons of builds – turn your tiny pellet into a bouncing storm, a piercing rail, a safe shield bubble or a swirling vortex of damage.

  • Fast arcade runs – instant restarts and quick runs; perfect for short sessions or long “just one more try” evenings.

  • Difficulty options – Relax, Easy, Normal and Hardcore presets – from chill flapping to sweaty record chasing.

  • Two upgrade styles – classic manual upgrade picks (you choose like in Vampire Survivors) or Flow mode with automatic upgrade choices so you can focus purely on dodging.

  • Extra modes – additional ways to play.

  • Neon Geometry Wars–style look – clean synthwave grid, bright orbs and clear hit feedback even when the screen is packed.

  • Punchy sound design – crisp hits, juicy pickups and satisfying upgrade feedback on both speakers and headphones.

  • Flexible controls – keyboard (Space + arrow keys), full gamepad support (Xbox / PlayStation / standard) and touch input; great for PC, Steam Deck and Remote Play.

  • Online leaderboards – compete with other players in global Steam score tables across multiple modes and difficulty levels.

  • Challenges & progression – unlock new options by completing in-game objectives instead of grinding endless gold.

  • Ball Bank – choose your starting weapons, skins and modifiers in a dedicated loadout / armoury screen before each run.

  • Marquee in the main menu – see the top players’ nicknames scrolling across the main menu every time you launch the game.

  • Steam achievements & Cloud – over 100 achievements plus Steam Cloud support for your progress.

MUTATION COMBOS

Start small, then let the chaos grow:

  • Begin with a single bullet.

  • Pick Split Shot – now you fire two bullets.

  • Add Ricochet and Pierce – your shots bounce, pass through enemies and cover huge parts of the screen.

  • Combine Homing, Explosive Bullets, Chain Lightning or Nova Blast to create your own broken combo.

Example mixes:

  • Faster Shots + Multishot + Faster Bullets = Bullet Spam

  • Multishot + Area Size + Bigger Projectiles = Wide Wall

  • Multishot + Pierce = Line Killer

  • Multishot + Ricochet = Bouncing Storm

  • Shield + Time Warp = Slow Bubble

  • Shield + Orbital Drone = Safe Core

  • Freeze + Vortex = Frozen Vortex

  • Poison + Vortex = Poison Zone

THE KULKA is all about making this one run as wild as possible – a quick neon arcade fix when you just want to flap, mutate and survive a little bit longer, with enough progression and competition to keep you coming back.

Cosmetic skins (including holiday themes) – full version only

In the full version of THE KULKA, you unlock additional cosmetic skins and visual variants (e.g. Christmas and New Year themes) that change the look of the game – with no impact on balance, mechanics, or leaderboards.

All skins are earned through challenges and objectives – no currency, no microtransaction grind.

Purely cosmetic. Zero advantage, just style.

THE KULKA
AiremDeveloper
AiremPublisher
2025-12-23Release
🎹🖱️ Keyboard + Mouse
🕹️ Partial Controller Support
🎮 Full Controller Support
2 user reviews (2 reviews)
Public Linux Depots:
  • [0 B]
Balls are planning whats next

Hello,

[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/45880623/d6f1c5b51160937067a9e272d8d2fcb318509910.png\"][/img]Artistic vision: The Council of Balls, Leonardo The Ball, 1564.

The game has already reached almost 500 people worldwide. Thank you for playing, reviewing, and spending time with the game this is what truly drives further development. Full post content: Below I share what I am realistically thinking about and considering as next steps. These are not promises or marketing this is the current state of planning. If something here makes no sense or something important is missing, I can only see it if someone actually names it. Trailer

Directions I am currently considering and even already testing

Game modes

As unlockable additions later in the game the core Flappy/arcade mode remains the heart/DNA of the game, each mode would have separate online leaderboards, and some would unlock after completing tasks or spending time in the game e.g. after 12h, 24h, 48h, etc., so as not to disrupt the games core flappy DNA this is mainly for players who might later feel a lack of content.

  • Campaign (narrative mode) a philosophical, reflective story about the ball as an idea/form (not just an object), about movement, chaos, and control. No time pressure and no leaderboards.

    [/*]
  • Sandbox no pressure and no ending (you play as long as you want). No leaderboard or a single shared one.

    [/*]
  • Tower Defense mode static defense of a position against waves of enemies (Plants vs Zombies style).

    [/*]
  • SHMUP mode full X/Y movement across the entire playfield (classic bullet-hell / arcade shooter).

    [/*]
  • Local versus / hot-seat mode take turns playing on the same screen.

    [/*]

[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/45880623/95836b51268dc6b51bc4f6d3cb387af2687a4280.png\"][/img]

Upgrade system

Randomness control (prototype)

  • LIKE I want to see it more often

    [/*]
  • DONT LIKE I want to see it less often

    [/*]
  • TEMPORARY / PERMANENT BAN I dont want to see it in this run or ever

    [/*]

Additionally, in the game settings you could define a list of upgrades that never appear or are always allowed to appear.

Example new upgrades:

  • Projectile splitting on axes (up / down / sideways)

    [/*]
  • Spirals and rotating flight paths

    [/*]
  • Projectiles orbiting around the player (drones / boomerangs)

    [/*]
  • Linking projectiles into lasers / beams

    [/*]
  • Leech (stealing HP from enemies)

    [/*]
  • Projectiles that collect XP

    [/*]
  • Swarm intelligence (projectiles react to other hits)

    [/*]
  • Portals (entry/exit like in Pattern Survivors)

    [/*]
  • Chaos bullets

    [/*]

Power-ups (temporary run effects)

  • Upgrade Chest a chest with a random upgrade or reward

    [/*]
  • Slow Motion slows time for a few seconds

    [/*]
  • Freeze freezes enemies

    [/*]
  • Nuke clears the screen of enemies

    [/*]
  • Shield temporary invulnerability / shield

    [/*]
  • Double XP double experience

    [/*]
  • Magnet pulls in all XP crystals

    [/*]
  • Extra Skip / Roll Token additional use of SKIP or ROLL

    [/*]
  • Bullet Storm sudden increase in projectile count

    [/*]
  • Overclock faster shooting and movement at the cost of control

    [/*]
  • Time Rewind rewind the last few seconds

    [/*]
  • Ghost Mode pass through enemies for a short time

    [/*]

Companion / Support Units (prototype)

  • Drone orbits the player and shoots automatically

    [/*]
  • Wingman a small SHMUP ship moving independently

    [/*]
  • Shield Unit generates a protective field

    [/*]
  • Collector collects XP and power-ups from a larger radius

    [/*]
  • Disruptor slows or weakens enemies in range

    [/*]

Other

  • Codex / bestiary / mechanic descriptions

    [/*]
  • Better build readability

    [/*]
  • Minimal meta-progression without destroying the arcade character

    [/*]
  • Save & Exit save a run and exit at any time, then return to exactly the same spot

    [/*]
  • FAL boss wave system short, intense waves plus boss fights at later levels.

    [/*]

[img src=\"https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/45880623/f1f15d80454f23dab529c61667bfa461ef4ebf0b.png\"][/img]

If any of this is important (or makes no sense)

You dont need to write long posts. Just:

  • this mode makes sense / this doesnt

    [/*]
  • this is interesting / this doesnt interest me

    [/*]
  • X is missing

    [/*]
  • \"bump\"

    [/*]
  • like up / down

    [/*]
[p]Its possible that some of these things will appear soon because Im already testing them (checking if theyre fun), and mainly I still want to mutate the projectile so the pla*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()*]()\n

[ 2026-01-04 19:22:50 CET ] [Original Post]

Minimum Setup

  • OS: Linux 64 bit
  • Processor: Intel Core i5Memory: 1 GB RAM
  • Memory: 1 GB RAM
  • Graphics: Nvidia & AMD (512MB VRAM)
  • Storage: 512 MB available spaceAdditional Notes: But please check demo!
  • Memory: 1 GB RAM
  • Recommended Setup

    • OS: Linux 64 bit Ubuntu
    • Processor: Intel Core i5-3570K or AMD FX-8320Memory: 1 GB RAM
    • Graphics: Nvidia & AMD (1GB VRAM) or legendary GeForce GTX 1060 8GB or RTX 3060 TI
    • Storage: 512 MB available spaceAdditional Notes: But please check demo!
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