extreme-startup is a realy good game, you can find it on https://github.com/rchatley/extreme_startup.
This project package extreme startup in docker conteneur. To use it you can launch
docker run -p 3000:3000 tclavier/extreme-startup
or
docker run -p 3000:3000 -e WARMUP=1 tclavier/extreme-startup