Factorio is like entertainment jackpot. You pay $30 and have endless entertainment for a lifetime. I played upwards 300 hours, still no sign of getting burn-out. Probably at some point I'll move on, but it's a practically infinite game...
I'm literally 3000 hours into Factorio and haven't burnt out on it. In fact, I'm just barely starting to get into the mods; I've done two complete Seablock runs (0.16 and 0.17), and I'm currently doing a Brave New World + Seablock run.