The first Deus Ex game. Really fun FPS with some RPG elements, branching paths with multiple endings, cool augmentations, and the GotY edition came with the SDK so there were always a bunch of cool custom multiplayer servers.
I used to make custom weapons, like a shotgun that shot chunks of meat, or an energy sword that dripped acid or flames. Really fond of it and I should probably play it again sometime soon
Oh man I didn't know they were replacing these. I tried the 3.5mm jack for the first time the other day and it was awful. I thought it had sat around unused for too long and I needed to clean it out or something