Island building isnt possible directly on the terrain, but theres a solid workaround using foundations and pillars from the water. Start by creating platforms that extend from your raft or water, since building straight on island ground wont work. The trick is layering foundations around the edges first, then working your way up with pillars - usually two or three high works best to get over most terrain. Once youve got your support structure, extend platforms onto the island however youd like just remember they need to connect back to water-based foundations.

Getting creative with platforms makes life easier especially when building larger settlements. Try circling the whole island with foundations first, makes expanding way simpler later. Tip: stacking pillars near cliff edges lets you build outward which looks pretty neat and saves space. A lot of people connect everything with docks and stairs, really helps with moving around your base.

Might be worth knowing that while permanent island structures arent directly possible right now, you can still make some impressive builds that look like theyre on land even though theyre technically floating. Just plan your foundation layout carefully since thatll determine how far inland you can actually build.