I'm definitely familiar with the problem you have, though honestly i feel like its gotten much better within the last 2 alphas. You mention ugly environment so it sounds like you should consider spending a little more beautifying the areas around your base.
But 2 major things that have can help with happiness substantially in this last alpha is
1: stop butchering people. I know its a fair income loss to do so, but the mood hit is fairly large.
2: Make sarcophagus and bury someone. Its a very easy way to give a colony wide mood buff.
But 2 major things that have can help with happiness substantially in this last alpha is
1: stop butchering people. I know its a fair income loss to do so, but the mood hit is fairly large.
2: Make sarcophagus and bury someone. Its a very easy way to give a colony wide mood buff.