Lobbies v1.5.4 · Changelog · Made by a gamer for gamers

Program traffic lights, barriers, and more to solve your city’s traffic problems! Improve your coding skills by learning to control time-dependent processes with realistic state machines.
The If Red Then Stop Lobby
16.09.2026 Demo Bug fixes and improvements
Hey everyone Thanks to all your feedback on the demo, we have already made some improvements:Relational operators or equal signs are now auto spaced.Added AND and OR auto correction.Fixed an issue where too many spaces were added for the := or inverse operator.AND has now priority over OR in the ST…
Try the new demo for If Red Then Stop - a traffic coding automation puzzler
If you love puzzle games that teach a little programming and automation - If Red Then Stop looks like your next visit. Read the full article here: https://www.gamingonlinux.com/2026/09/try-the-new-demo-for-if-red-then-stop-a-traffic-coding-automation-puzzler/
The If Red Then Stop Demo Is Now Live! 🚦
Hey everyone We’re very excited to say that the If Red Then Stop demo is now live on Steam! After the playtest, we received an incredible amount of helpful feedback from all of you. We carefully went through it and used it to improve the game and put together this new demo. And there’s more to play…
via Steam