How To Vibe Code Your First Game for levelsio's $35k Vibe Jam (Codex, Claude Code, Cursor)
🚀 VibeGameDev —AI Game Dev Resources, Skills, Source Code & Playbook ► https://aiod.dev/2e2e11 🎮 Get the Vibe Jam Starter Pack (FREE) ► https://aiod.dev/511fdc 🧰Get My FULL AI Builder System (ALL ACCESS) ► https://aiod.dev/a2cbdc Think you need months, a Unity license, or years of game dev experience to ship a real game? In this video, I'm walking you through my exact 10-step process for vibe coding a fully playable game in just 3 days, and entering it into levelsio's $35,000 Vibe Coding Game Jam. We aren't building a "Hello World" demo. We're shipping two playable characters, melee combos with hit-stop, projectile physics with auto-aim assist, screen shake, and a fully custom-built level editor — all using the combined power of Phaser 4, Codex, and Claude Code. 🛠️ THE STACK • Engine: Phaser 4 for 2D game logic, physics, and rendering • AI Tools: Codex CLI / App, Claude Code, Cursor, or Antigravity (workflow is tool-agnostic) • Assets: itch.io packs + a canonical index.json manifest for AI context • Skills: My battle-tested Phaser 4 + Game Dev Asset agent skills • Polish: Screen shake + time-freeze hit-stop for that "juicy" feel • Tooling: A vibe-coded level editor — no Tiled, no off-the-shelf tools 🚀 WHAT YOU'LL LEARN • The 10-Step Vibe Jam Blueprint: From an empty folder to a playable game in 3 days, with the exact prompts at every stage. • The "Asset Index" Strategy: Why creating an index.json is the single most important first step — and how to make your AI generate it for you. • The "Gym Level" Trick: Building a debug-first sandbox so you can iterate on movement, combat, and animations without touching real levels. • Finding the Fun: How to layer combo systems, auto-aim assist, screen shake, and hit-stop to take a game from "working" to "feels great." • The Secret Unlock: Why you should always vibe code your own level editor instead of using off-the-shelf tools (and how I built mine in one prompt). • Tool-Agnostic Workflow: Why everything in the Starter Pack works with Claude Code, Codex, Cursor, or Antigravity — pick whatever you already know. 🕒 TIMESTAMPS 00:00 Intro 01:31 Get the Vibe Jam Starter Pack 01:57 Go Deeper with VibeGameDev.com 03:30 Step 1: Game Idea 05:23 Step 2: Game Assets 08:21 Step 3: Game Engine 09:22 Step 4: AI Tool 10:00 Step 5: Assets Index 12:15 Step 6: Basic Movement & Controls 14:21 Step 7: Game Loop / Mechanics 16:06 Step 8: Iterate and Extend on Foundations 18:12 Step 9: Polish & Juice 20:07 Step 10: Tooling & Level Editor 23:06 Wrap Up #vibecoding #aigamedev #vibejam #phaser #claudecode #codex #indiedev #gamedev #vibecodegames #vibejam2026 #claudecode #codex #codexcli #gamedev #vibejam