Thanks for trying our game! We're glad you enjoyed it. All of your points were spot on as well. The engine is fully custom built in Odin. We didn't quite have time to finish the proximity chat feature, so the microphone requirement is now removed from the current build, and the mouse locking issue is fixed now too. We plan on having an in game shop to buy traps and abilities with the money earned, along with many more traps and abilities to come.
We hope you'll be back to try it out again when the new features are built!