On a (relatively) recent announcement on steam, the developers announced they are working on adding easy and hard difficulty settings. What would you like to see in this kind of addition? I have a few personal ideas, but I'd like to see what the community can come up with.
-Certain creatures (like fulings, seekers, and/or wolves) could be made more or less aggressive.
-Starred creatures could spawn more or less frequently, on hard mode maybe rare three-starred creatures could spawn. Some creatures could also spawn as starred when they normally can't (such as sea serpents, loxen, and stone golems).
-For easy mode, invasions could be turned off by the player. For hard mode, they could include harder creatures.
-For hard mode, creatures could have the ability to slowly climb the walls of elevated terrain.
-For easy mode certain creatures could have their damage and health nerfed.
-For hard mode, bosses could enter a second phase as half or one-third health.
Source: https://www.reddit.com/r/valheim/comments/12aym9g/how_do_you_think_a_hard_mode_or_easy_mode_should/