Originally posted by +theo+:

hi guys is this game like rust that u build a base and there's a wipe? or can I play singleplayer and just come back in after months and see my base still there? thanks for answers

Arguably the majority of people play in single player. Rust tends to favor the multiplayer pvp experience. There are of course servers(no official ones) for valheim but they tend to be run by intentionally gated communities(ie pass words interviewing too etc) because this game allows altering the terrain and a world once made has various resources which are finite.

I suggest for you to watch various youtuber's videos on play throughs to make a judgement on whether the game would be a match for you.

As for bases, the devs have stated that they do their best to not cause loss of player driven creations with updates however if you explore a world fully, any new biome updates wont show up wholly because that is one of the methods the devs attempt to protect player's creations by assumption.

That said(and as other said) this is an early access game and things can change. However if you are playing in single player or via your own made server, any losses overall you could use admin commands, mods or both to rectify such situations.