Patch 3 (25 March 2016)
- added option to lock physics framerate to 60fps (improves gameplay fluency on some machines)
- fixed collision issues on 'Bridge', 'Train' and 'Serv' levels
- rebaked lighting on certain levels to get rid of green spots
- proper saving of challenge progress
- small challenges flow bugfixes
- fixed crosshair staying on screen after running 'diy.exe'