I was very happy when ONI came to Linux and bought it right away. Nice job, Klei team, thanks for thinking of us even though we're a small audience as of now.
The game starts nicely, I can choose characters and the loading screen displays correctly. All text up to here is legible. After that, I get a message that has unreadable text.
Clicking on the right button exits immediately, clicking on the left button brings up another notification. Clicking the button here exits the game.
I can then restart the game and have an active savegame to continue. If I do that, it seems to load okay, I get a brief flickr of the world visible as it should be, and then the world goes black (UI remains visible though).
I'm on a Linux Mint 17 machines with all updates (Kernel 2.2.16). I use an NVIDIA GTX 750 with the recommended driver 384.
I assume it's a graphics issue. I'd gladly provide more insight, but dmesg doesn't yield any errors and I'm not sure where I could find them... I also assume this is normal infancy for the Linux version and will patiently wait. I hear others are already playing it, so it must be some version hiccups or something like that.
Install and start game on a machine with Linux Mint 17 and an NVIDIA GeForce GTX 750.