Opus 5.5 Built a Full 3D Game for $55

I made a whole 3D game in under 4 hours. Well, to be fair, Opus 5.5 did 😄 It's a little platformer called Go Go Slime! You jump from rock to rock, higher and higher, while pink goo keeps rising below you. A bit like Icy Tower, which I played way too much as a kid. In this video I show my entire workflow, from an empty folder to a working game: 🎨 finding the vibe and making reference images with GPT-6 Astra 📝 writing a real plan instead of one "make me a game" prompt 🤖 a team of Claude Opus 5.5 agents: one boss, plus a builder and a judge for every round 🧊 every 3D model made with code (Python scripts running in Blender, nobody clicks anything) 🌙 day to night with real lights, not a filter on top 🎮 turning it into a game, and the sneaky bug that made it fail once The build took 3 h 45 min and cost about $55. Sound came later as an extra round, around $4 more. If you want to see something much bigger, in our other series we're building a survival game with exploration and some paranormal stuff 👉 https://www.youtube.com/watch?v=fsyuQNqbCCI&list=PLfckBn6jvCQk Chapters 0:00 I made this game in under 4 hours 0:17 The idea 0:32 Finding the vibe (images with GPT-6 Astra) 1:53 The plan: rounds, rules and a team of agents 3:31 Round 1: the island 4:25 Round 2: day to night 5:27 Round 3: making it a game 6:34 The fail (and the fix) 7:19 Time and cost 8:02 Let's play 8:58 The full run Made with Claude Opus 5.5 in Claude Code, GPT-6 Astra, Blender 5.2 and Godot 4.7. Game music: "Happy Orchestral Adventure" by JorisVermeer (Pixabay). Sound effects from Pixabay. Not sponsored. Let me know in the comments what you'd add to the game next 🙂 #Opus55 #GameDev #Blender