Games like Sole Seeker
Games like Sole Seeker include Once Human, ASTRONEER, Sons Of The Forest, Valheim, and No Man's Sky. We matched them by the tags players give Sole Seeker on Steam (Strategy, Action-Adventure, Base Building, Exploration, and Space): closest matches first, and among equally close ones the better-known games.

Once Human
Shared: Open World · Survival · Exploration

ASTRONEER
Shared: Space · Exploration · Base Building

Sons Of The Forest
Shared: Survival · Base Building · Open World

Valheim
Shared: Survival · Open World · Base Building

No Man's Sky
Shared: Space · Exploration · Open World

The Alters
Shared: Base Building · Strategy · Survival

Core Keeper
Shared: Exploration · Survival · Open World

7 Days to Die
Shared: Survival · Base Building · Open World

Oxygen Not Included
Shared: Base Building · Survival · Strategy

Enshrouded
Shared: Base Building · Survival · Open World

Terraria
Shared: Survival · Exploration · Open World

V Rising
Shared: Base Building · Survival · Open World

Kenshi
Shared: Open World · Survival · Strategy RPG

Space Engineers
Shared: Space · Survival · Base Building

Satisfactory
Shared: Base Building · Open World · Exploration

The Planet Crafter
Shared: Base Building · Survival · Space

Subnautica
Shared: Survival · Exploration · Open World

Starfield
Shared: Space · Open World · Exploration

Starbound
Shared: Space · Survival · Exploration

Space Haven
Shared: Base Building · Strategy · Survival

ARK: Survival Ascended
Shared: Survival · Base Building · Open World

IXION
Shared: Strategy · Space · Survival

ICARUS
Shared: Base Building · Survival · Exploration

STAR WARS Jedi: Fallen Order™
Shared: Action-Adventure · Open World · Exploration