LMAO – Temu League of Legends, Built with Opus 4.8

Fun weekend project just to test out 4.8 against a pretty vanilla setup.

Started out with a simple prompt, "build a temu league of legends, web-only with online, room-based multiplayer".

It built it... fully functional in one shot! Then I went kinda ham and started iterating on every aspect little by little. I made it spin up subagents to each focus on designing a character. Spun up subagents to focus on designing abilities and their SFX/VFX. Did a few passes over the map, mobs, minions, etc.

Then I put Ultracode Workflows to task and, across a handful of prompts, had it optimize performance, balance, and a variety of other things. Workflows is insane btw...

I also used /goal pretty heavily as well. I'd sit and play and make note of like 10-15 tweaks, bug fixes, etc at a time and just let it go to town.

4.8 is a one shot machine... 5.5 ain't doin this...

Anyways, figured I'd share. Happy to answer any questions in the comments!

Try it out solo (with bots) or with friends! https://lmaomoba.com

Stack - Web: React/TypeScript - Game: Canvas - Server: PartyKit - Harness: Claude Code - Model: Opus 4.8 - IDE: atrium (getatrium.dev)