For me it was Terraria, Satisfactory, Tetris Effect Master Mode, Minecraft with Mekanism mod & CSGO / CS2 (almost 2000 hours in CS alone).
Edit: There are so many answers that I might only reply if I have something interesting to say. I will read all of your answers though. 🙂
Edit 2: It has become too much for me and I have to disable notifications. Thank you for the massive response and please continue to discuss with everyone here. ❤️ 🫡
For a while it was Elite Dangerous. Reached triple Elite, then eventually Odyssey drops and I stopped playing. After Elite was Baldurs Gate 3. Bg3 was the fastest 1000+ hours I’ve ever dropped in a video game