You can download a bugfixed version here:
https://s3-ap-southeast-2.amazonaws.com/packaged-games/TheChasm_Windows.zip
Changelog:
- Fix rope elasticity launching the player to the moon
- Fix end dialogue in skeletons cinematic being cut off
- Fix incorrect title in system tray
- Fix corpses activating checkpoints
- Fix lava pivot having a hitbox
- Fix lava being climbable
- Fix lava not killing the player