A couple of ideas for when every quest has been done: 1) a terraformer machine that refills all the tunnels one has dug; 2) a (very expensive-to-make) machine that refills the land with ores and gems; 3) more comfort requests from the other colonists (a disco, a bar, a pool-hall, a bowling alley, tv, peddle-boats, private quarters, ...); pastures/corrals/ponds for all the creatures/animals caught (I feel sorta uneasy seeing all those cages and having spend years locked up in boarding schools myself. I kinda want to set them free. Same goes for the girl stuck in that exofighter in my storage.) 4) a translation book for the yetis (or other magical creatures). Maybe they're not so violent once we find out what's ailing them. Maybe if I was to build them some igloos (or proper houses for that matter) we'd come to some kind of cooperation... (I'm just spitballing here. There's no need to respond to all of this.)