Portal and Half-Life (obviously), they're both a huge influence on my work. I also enjoy Paradox grand strategy games like Europa Universalis, and also RTS games like Supreme Commander. Disco Elysium is also a game I highly recommend to basically everyone, it can be life-changing. Fallout: New Vegas is kind of in the same vein, but more as just a very enjoyable RPG with smart writing. I grew up with Pokémon, RollerCoaster Tycoon, Sim City 4 and the Legend of Zelda (I've been meaning to replay Majora's Mask soon) so I still play those often.