Opus 5.5 built this cozy 3D pixel art game

A developer created a cozy 3D pixel art game called "Willowmere" using Opus 5.5, noting its improved capabilities despite the $20 plan's limits. The game involves moving to a seaside town, fixing a lighthouse, and restoring the Lantern Festival, alongside farming, fishing, decorating, and befriending townsfolk and a cat. Players should use the A button on mobile where the game indicates E. The developer used mostly "High" reasoning efforts, with "medium" for quick fixes, and welcomes feedback and bug reports.

This report highlights Opus 5.5's improved capabilities for game development, unlike earlier versions that were more restrictive on a $20 plan.