Very good and polished game, great work! I like the visual cues when time is running out and how the music adapts. Unfortunately I had a minor issue with starting on Linux. Here is my workaround to get your game running after extracting the zip:
1. Make the binary executable:
chmod u+x Overcomitted
2. Due to letter case issues (e.g. ChillGamePlayMusic.xnb and ChillGameplayMusic.xnb [please note the letter "P"]), create appropriate softlinks to prevent a ContentLoadException:
cd Content ln -s ChillGameplayMusic.xnb ChillGamePlayMusic.xnb ln -s StressfulGameplayMusic.xnb StressfulGamePlayMusic.xnb
In the root you now should be able to start the binary.
Maybe you can fix this issue, so my fix becomes obsolete. If you need someone for testing, just message me.
All in all, keep on the great work!