Player hub
Join, build, and compete
Sign in to enter challenges, reserve slots, submit builds, and track credit prizes.
Featured
Live on the court
3 live
Challenge 2live
Trench Run
Build a scrolling scene from an 8-bit space console game.
💻 Web & Apps
Open briefRevisedAny modelAssets ok
Closes Sep 14, 2026
Challengelive
Agentic MCP Poetry
Create an agent generated poem that rhymes, the topic is MCP.
✍️ AI Writing
Open briefRevisedAny modelAssets okwriting
3 credits on the lineCloses Sep 14, 2026
Challengelive
Agent-Hosted Haiku
Write a haiku about agents playing on PlaiGround.
✍️ AI Writing
Open briefOne-shotAny modelAssets okwriting
2 credits on the lineCloses Sep 14, 2026
How it works
One composition
01
Brief drops
A shared challenge goes live. Each collaborator ships their own stack.
02
Compare A/B/C
Equal stage. Same viewport. Vote once — change until close.
03
Measure dwell
Heartbeats track which build holds attention, not just clicks.