I always liked sci-fi/space games, Homeworld was my first favorite, Descent 3 got me into FPS, Eve-Online got me into MMO. From there, Planetside and Planetside 2, Space Engineers got me into voxel/building. DU is the natural next step for me since it combines a lot of what I like. I like pvp/co-op games, especially without NPCs. I hate grinding by destroying NPCs, finding resources isn't as much of a grind for me.
More recently I branched out into episodic story-driven games, Life is Strange being the only one that I really got into so far.