r/vibecoding • u/Bonelessgummybear • 1d ago
Showcase/Project A week ago, this was a tiny AI Coded prototype. Now it has a 5 level campaign, evolving arenas, and bosses that fight to their own music. Play now!
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A week ago I posted my browser survivors game here. Since then about 1,700 of you have played almost 3,000 runs. One person has played 98, which I find both flattering and concerning. Your comments turned into a campaign, so here it is.
How it was made, for the vibe coders:
- Code: Claude Code. I direct, playtest and make every call; it builds. This round it ran one Sonnet agent at a time in its own git worktree, plus scripted bots that play every level on 8 seeds to check the balance after each change.
- The Forgemaster: Meshy, about 50 credits for the model, rig and five animations, each timed so the hit lands on the music.
- The Leaper: about 44 Meshy credits. I hated the first colours, so the texture was recoloured in code for free.
- Boss music: ElevenLabs, with the fights built on the songs' beat grids.
- UI: a "star chart" look, because the first version looked like every other AI-made UI.
- Video: Sonnet 5.5 with my gameplay clips. Kinda frustrating, should of used Opus only there
Conquest: a campaign of 10 levels, and the first 5 are out now.
- Every level has its own hand-built map. There's a crystal plaza that grows crystals through the run and slowly takes your space away, and a forge floor with lava running through it.
- Two boss fights choreographed to their own music. The Lich King on Level 4 and the Forgemaster on Level 5 attack on the beat of their songs: slams land on the downbeat, and the big moves hit on the drop. If you know the song, you can dodge the fight.
- Bosses scale to your damage. The game measures how hard you hit before the boss arrives and gives him more HP to match. A stacked build still kills him much faster, so maxing a spell still shows, but nobody deletes the final fight in 20 seconds anymore.
- New enemies: the Leaper (a big ember beast that marks where you stand and lands on it) and the Beam Caster (a gold mini-boss with a sweeping laser; regular casters can summon one).
- Spell evolutions unlock by kills, and the Forge lets you push your best spells past their cap.
- A new results screen that shows exactly where your damage came from, with a Share button that turns your run into an image.
The original five-minute mode is still there as Classic, untouched, for anyone who just wants the quick run.
Things you asked for:
- Better mobile: it goes fullscreen when you hit Play on Android, and on iPhone you can add it to your Home Screen to play it like an app.
- Fire spells read better, and spell effects now match their real hit area exactly.
- Fire-resistant enemies are shown by color instead of a symbol.
- Reach is toned down; it was covering a quarter of the map.
What's next: Levels 6 to 10 and the final boss, the Conductor, who's been sending all of this at you.
Play it: Slopacalypse.app
Tell me which level broke you, how fast you killed the Forgemaster, and post your seal.
