Stellaris and Fallout 4.

Stellaris was the game that got me into gaming. I remember talking to one of my friends back in high school, and he recommended it to me. I picked it up on sale, and I've played it regularly ever since. Not only is a good sci-fi grand strategy game, but the sheer amount of mods available means you can make it into whatever you want. Want to play in the Star Wars galaxy? There's mods for that. Star Trek? Same deal. Want to add weaponized moons, death-rays that monopolize the power of a star, and a bunch of robot cats that are hellbent on consuming all matter in the galaxy? There's a mod for that as well.

Fallout 4 was the first game I brought after I got my own dedicated gaming setup. I decided that since I had a proper setup now, I might as well buy something that'd take advantage of the new resources I had. Fallout 4 had been a game that had caught my eye since the first ads way back in 2015, so I figured I'd pick it up on sale. And what really made me fall in love with it was the settlement system. A bit strange, I know, but I just really love building things in games. Most of my mods for the game are related to the settlement system in some way or another, and I'll often find myself booting up the game and building a new shack in Sanctuary or expanding Vault 88 a bit more.