Originally posted by Knightframe:

Swamp is horrible choice to build. The non-stop rain, poision slimes and not much space to build anything realy, unless you bring a lot of stone and raise the ground araund it. (you can get attacked by night by ghousts tho)
Outpost with portal near a surfling spawn is much better.

disagree about swamps. they are probably the safest biome (excluding unfinished mistlands). just build your base on a tree: only ghosts will be able to reach you(and they spawn only during night time. so sleep or teleport elsewhere).
https://steamcommunity.com/sharedfiles/filedetails/?id=2643086928 (it's under construction, but something like this)

easy to set up farms for entrails, blood bags and cores(and if you're lucky a lot of iron too).
also i've noticed that often you can find a swamp with a plains nearby. which makes it ideal for planting flax and barley (especially if it's a tiny biome)
https://steamcommunity.com/sharedfiles/filedetails/?id=2643079253