Chaos update (version 2.2 I think)

This update brings many changes to the game, most notably the new gamemode, chaos mode, where random events happen around every 30 seconds. Currently, there are not that many events, but more will be added shortly. A complete graphics overhaul also took place, hopefully making the game look much more realistic. 

Other changes:

Post-processing effects now implemented (Chromatic abberation, vingette, motion blur, etc)

Various bug fixes

General optimization

Some other small features