Terrraria -- Up down left right
Starbound -- Up down left right -) to new maps
Valheim -- Up (not by much), down (even less), left , right, Z --) new map creation

From Terraria you can still use some strategys, like building a boss arenas, but bosses can destroy structures. However you dont need anoying npcs in your base to prevent a monster spawns, just a workbench.

This gives Valheim way more freedom than the other game, where you are pretty much stuck with a single base or you have to remake a whole building complex. Not to mention the event after you kill lava boss for 1.st time, changes the terrain and makes you work extra to fix the base.

Also, you are not forced to collect hp (and by accident trigger a boss fight) and you can go at your own pace.

For armor progress, i think Valheim needs a bit more options to chose from (light, medium, heavy). There is no light armor after troll armor and you are pretty much stuck with a slow speed for rest of the game.

But game is still work in progress, so things will change.