Kül Kulesi (Ashspire) — Pixel Roguelite Platformer Game
Play Kül Kulesi (Ashspire) — an AI-built pixel roguelite platformer from Neta Studio. Guide Kael up a self-growing cursed tower across five shifting biomes, master six weapons with combo and charge attacks, dash through i-frames, loot chests and soul embers, and face three multi-phase bosses. Browser and mobile playable, no download.
Final Product: Kül Kulesi (Ashspire)
Cover
Game cover: Kül Kulesi (Ashspire) — a hooded Kael before the cursed tower, generated by GPT Image 2 in 16:9.
Gameplay
Actual gameplay: the cinematic title screen — the KÜL KULESİ / ASHSPIRE wordmark over the moonlit tower and a distant Kael.
Gameplay
Actual gameplay: Floor 1 of the Keep — Kael on the torchlit gothic walkway with the health bar, floor tracker and weapon HUD.
Gameplay
Actual gameplay: mid-swing on the Keep floor with a swung shardblade, a lootable chest and soul embers drifting from a kill.
Kül Kulesi (Ashspire) is a playable pixel roguelite platformer about climbing a cursed, self-growing tower. You are Kael — a lean hooded blade — and the tower has chosen you. Every death reshapes its corridors; every rebirth sharpens your blade.
Cut through fast combat rooms, chain light combos and charged attacks with six distinct weapons, pick one of seven run abilities after each room, and bank soul embers into permanent relics. Five biomes and twelve enemy archetypes stand between you and the three multi-phase bosses at the top — Gateking, Crystallith and the final Tower Warden.
Play it now: Kül Kulesi (Ashspire) →
Game Features
- Climb, Die, Be Reborn Sharper — A true death loop: every run the Ashspire regrows its corridors, so rooms, enemy placement and loot reshuffle each time. Soul embers dropped by kills buy permanent relics — more health, more damage, extra dashes — so the next climb starts stronger.
- Six Weapons With Combo & Charge — Shard Blade, Storm Spear, Twin Fangs, Great Axe, Ember Bow and Arc Staff each have their own speed, reach and feel. Chain light-combo strings, then release a charged attack — Rune Slash, Lightning Bolt, Cross Fang, Whirlwind, Triple Shot or Orb Barrage.
- Five Shifting Biomes, Procedural Rooms — Climb from the torchlit Keep to the crystal Cave, the poison Mire, the frozen Ice Realm and the molten Lava Region. Each biome fills four rooms with random enemies, chests and rewards, and changes the rules — slippery ice floors, ember rain, poison mist.
- Twelve Enemies, Three Multi-Phase Bosses — Twelve original archetypes — patrolling guards, runners, ranged casters, leapers, flyers and heavy tanks — plus a biome elite. The chain ends in three phase bosses: the Gateking in the Keep, the Crystallith in the Cave and the final Tower Warden at the top.
- Dash-i-Frame Platforming — Run, double-jump, dash with invincibility frames, wall-slide and wall-jump, air-attack and crouch. Combat lands with hitstop, knockback, screen shake and hit VFX so every swing reads on impact.
- Browser & Mobile Playable — Runs directly in your browser with no download. Full keyboard controls (A/D move, Space jump, J attack, K dash) plus a touch joystick and large Jump / Attack / Dash buttons, with autosave and a 60 FPS target on desktop and mobile.
Character Sprites
Sprite
Kael — the player hero: hooded charcoal tunic, ash-grey scarf and a glowing violet crystal shardblade (transparent PNG).
Sprite
Gateking — the Keep boss: a colossal armored gate-guardian with a molten ember core and a gate-shaped shield (transparent PNG).
Sprite
Tower Warden — the final boss: a robed keeper of drifting ash and violet flame, arms spread to channel the spire (transparent PNG).
Sprite
Ash Warden — Keep enemy: gothic plate armor with glowing ember cracks and a jagged greatsword (transparent PNG).
Sprite
Mire Hag — Mire enemy: a hunched swamp witch with a gnarled staff and a dripping poison orb (transparent PNG).
Sprite
Ice Wraith — Ice Realm enemy: a frost spirit crowned with icicles and an aurora glow (transparent PNG).
Sprite
Lava Brute — Lava Region enemy: a hulking magma giant with molten cracks and massive fists (transparent PNG).
Production Process Breakdown
Stage 1: World Buildingneta-studiodeepseek
From a single sentence, Neta Studio generated the world of the Ashspire: a self-growing cursed tower, Kael the hooded bladesman, soul embers that buy permanent power, five biome floors and a death loop that rewrites the map every run.
From a single sentence, Neta Studio generated the world of the Ashspire: a self-growing cursed tower, Kael the hooded bladesman, soul embers that buy permanent power, five biome floors and a death loop that rewrites the map every run.
Stage 2: Game Design & Pixel Enginehtml5-canvas
The game was built as a real-time 2D platformer on an HTML5 canvas: a custom engine with entities, procedural room levels, room-clear and boss logic, combo and charge combat, dash i-frames, hitstop, HUD, autosave and touch + keyboard input.
The game was built as a real-time 2D platformer on an HTML5 canvas: a custom engine with entities, procedural room levels, room-clear and boss logic, combo and charge combat, dash i-frames, hitstop, HUD, autosave and touch + keyboard input.
Stage 3: Art & Asset Productiongpt-image-2birefnet-general
Key art, the 16:9 cover, the character, boss and enemy sprites and the five biome backgrounds were generated with GPT Image 2, then every sprite was background-removed with BiRefNet to a transparent PNG so it drops cleanly onto any scene.
Key art, the 16:9 cover, the character, boss and enemy sprites and the five biome backgrounds were generated with GPT Image 2, then every sprite was background-removed with BiRefNet to a transparent PNG so it drops cleanly onto any scene.
Stage 4: Build & Publishneta-studio
The finished build was published to a public link in one click — instantly playable in the browser on desktop and mobile, with no download and no local setup.
The finished build was published to a public link in one click — instantly playable in the browser on desktop and mobile, with no download and no local setup.
Scene Backgrounds
BG
The Keep — torchlit gothic corridors with purple-flame braziers, where every climb begins.
BG
The Cave — teal crystal caverns with low rocky ceilings and a glowing underground lake.
BG
The Mire — a poison-mist swamp of dead twisted trees and drifting will-o’-wisps.
BG
The Ice Realm — a frozen spire hall of ice pillars under an aurora sky.
BG
The Lava Region — the tower’s heart: molten rivers, ember rain and dark stone walkways.
Asset Prompts
Cover Key Art Promptgpt-image-2
"Pixel-art roguelite game cover key art, cinematic 16:9, for "Kül Kulesi / Ashspire". A lean agile hooded warrior (Kael) holding a glowing violet crystal shardblade stands at the base of the colossal cursed gothic tower Ashspire, looking up. The spire grows from a jagged mountain, violet ember light glowing in its arched windows, ash falling like snow, a huge pale moon behind the spire, purple-flame torches, dark moody sky. Sharp 2D pixel art game style, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, visible pixel grid, dithering, dramatic scale, poster composition. Bold title text "KÜL KULESİ" with subtitle "ASHSPIRE". No watermark, no logo."
"Pixel-art roguelite game cover key art, cinematic 16:9, for "Kül Kulesi / Ashspire". A lean agile hooded warrior (Kael) holding a glowing violet crystal shardblade stands at the base of the colossal cursed gothic tower Ashspire, looking up. The spire grows from a jagged mountain, violet ember light glowing in its arched windows, ash falling like snow, a huge pale moon behind the spire, purple-flame torches, dark moody sky. Sharp 2D pixel art game style, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, visible pixel grid, dithering, dramatic scale, poster composition. Bold title text "KÜL KULESİ" with subtitle "ASHSPIRE". No watermark, no logo."
Player Sprite Prompt (Kael)gpt-image-2
"Pixel art game character sprite of Kael, a lean agile hooded warrior, side view facing RIGHT, full body, dark charcoal hooded tunic with violet ember trim, short dark hair, ash-grey scarf, holding a glowing violet crystal shardblade low at his side, calm ready stance, centered with margin around the figure. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
"Pixel art game character sprite of Kael, a lean agile hooded warrior, side view facing RIGHT, full body, dark charcoal hooded tunic with violet ember trim, short dark hair, ash-grey scarf, holding a glowing violet crystal shardblade low at his side, calm ready stance, centered with margin around the figure. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
Boss Sprite Prompt (Gateking)gpt-image-2
"Pixel art game boss sprite: Gateking, a colossal armored gate-guardian made of black stone and iron, side view facing LEFT, full body, a molten ember core burning in his chest, cracked stone helmet with a glowing visor, holding a huge gate-shaped shield, towering menacing pose, centered with margin. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
"Pixel art game boss sprite: Gateking, a colossal armored gate-guardian made of black stone and iron, side view facing LEFT, full body, a molten ember core burning in his chest, cracked stone helmet with a glowing visor, holding a huge gate-shaped shield, towering menacing pose, centered with margin. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
Enemy Sprite Prompt (Ash Warden)gpt-image-2
"Pixel art game enemy sprite: Ash Warden, an armored gothic castle guard, side view facing LEFT, full body, heavy dark plate armor with glowing ember cracks and a tall crested helmet, holding a jagged greatsword, menacing stance, centered with margin. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
"Pixel art game enemy sprite: Ash Warden, an armored gothic castle guard, side view facing LEFT, full body, heavy dark plate armor with glowing ember cracks and a tall crested helmet, holding a jagged greatsword, menacing stance, centered with margin. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
Enemy Sprite Prompt (Mire Hag)gpt-image-2
"Pixel art game enemy sprite: Mire Hag, a hunched swamp witch with mossy green skin, gnarled wooden staff and a dripping poison orb, side view facing LEFT, full body, centered with margin. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
"Pixel art game enemy sprite: Mire Hag, a hunched swamp witch with mossy green skin, gnarled wooden staff and a dripping poison orb, side view facing LEFT, full body, centered with margin. Sharp 2D pixel art game sprite, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, clean pixel clusters, visible pixel grid, isolated on a solid pure black background, no text, no watermark, no logo."
Scene Background Prompt (Keep)gpt-image-2
"Pixel art game background: torchlit gothic castle corridor interior, tall stone arches, hanging chains, ember braziers, dark banners, purple candlelight glow, wide horizontal view, depth with distant archways. Sharp 2D pixel art game background, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, visible pixel grid, wide horizontal composition, atmospheric, no characters, no text, no watermark."
"Pixel art game background: torchlit gothic castle corridor interior, tall stone arches, hanging chains, ember braziers, dark banners, purple candlelight glow, wide horizontal view, depth with distant archways. Sharp 2D pixel art game background, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, visible pixel grid, wide horizontal composition, atmospheric, no characters, no text, no watermark."
Scene Background Prompt (Lava Region)gpt-image-2
"Pixel art game background: lava foundry deep in the tower, rivers of molten rock, ember rain falling, dark stone walkways over magma, orange-red glow, wide horizontal view, depth with distant forges. Sharp 2D pixel art game background, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, visible pixel grid, wide horizontal composition, atmospheric, no characters, no text, no watermark."
"Pixel art game background: lava foundry deep in the tower, rivers of molten rock, ember rain falling, dark stone walkways over magma, orange-red glow, wide horizontal view, depth with distant forges. Sharp 2D pixel art game background, limited palette of coal black, violet ember, crimson coal and cold ice blue, hard pixel edges, no anti-aliasing, visible pixel grid, wide horizontal composition, atmospheric, no characters, no text, no watermark."
World Visual Targetneta-studio
From the world visual style: "Limited-palette pixel art with forms quantized into readable pixel clusters and stepped silhouettes." Art direction: sharp 2D pixel art, hard pixel edges, no anti-aliasing, visible pixel grid and dithering, in a palette of coal black, violet ember, crimson coal and cold ice blue. Camera: a side-view platformer following Kael up the spire. Tone: grim, gothic and fast.
From the world visual style: "Limited-palette pixel art with forms quantized into readable pixel clusters and stepped silhouettes." Art direction: sharp 2D pixel art, hard pixel edges, no anti-aliasing, visible pixel grid and dithering, in a palette of coal black, violet ember, crimson coal and cold ice blue. Camera: a side-view platformer following Kael up the spire. Tone: grim, gothic and fast.
Why Choose Neta Studio
Professional — A cloud harness carries the whole workflow from world building to game publishing, all running in the cloud with no local setup. Stable access to the latest models: GPT Image 2 · BiRefNet · HTML5 Canvas.
One-click generation — Officially tuned skills drive every step: world building, character design, sprite and background generation, background removal and game packaging. World-fork resource sharing means every asset is reusable.
Community-first — Users build unlimited worlds, and every public world can be forked, remixed and reimagined. Start from the Ashspire or begin fresh from any idea.
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This game was generated by Neta Studio AI from a single sentence. The world took minutes. The game took minutes. You can do it too — adapt this world or start fresh from any idea. No coding required, free to start.
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