Mindustry, it’s open source as well, must have sunk close on a thousand hours into it. Incredible Game, has a good modding scene as well.
Trove, the opposite of Mindustry, in that the game sucks, I do not recommend. However the game had so much potential and it sort of half realized it before becoming a cash grab. Does a good job of releasing LOADS of dopamine for very simple game play. That said I am now looking into Veloren - which appears to try and be a better version of trove, although taking voxel MMORPG in a new direction. It’s also open source so, yeah.
Minecraft - with mods. Nothing quite beats tech mod mania. I hope some day luanti gets to be a real competitor on some level, but till then.
