Games like Sailing alone:Aftermath
Games like Sailing alone:Aftermath include 7 Days to Die, Valheim, ARK: Survival Evolved, Raft, and Grounded. We matched them by the tags players give Sailing alone:Aftermath on Steam (Sailing, Open World Survival Craft, Post-apocalyptic, Base Building, and Adventure): closest matches first, and among equally close ones the better-known games.

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

Valheim
Shared: Open World Survival Craft · Survival · Base Building

ARK: Survival Evolved
Shared: Open World Survival Craft · Survival · Co-op

Raft
Shared: Open World Survival Craft · Co-op · Survival

Grounded
Shared: Co-op · Open World Survival Craft · Survival

Don't Starve Together
Shared: Open World Survival Craft · Co-op · Survival

Once Human
Shared: Co-op · Open World Survival Craft · Survival

Grounded 2
Shared: Base Building · Co-op · Survival

Terraria
Shared: Open World Survival Craft · Survival · Adventure

Project Zomboid
Shared: Open World Survival Craft · Survival · Post-apocalyptic

Rust
Shared: Open World Survival Craft · Survival · Adventure

The Forest
Shared: Open World Survival Craft · Survival · Adventure

Sunkenland
Shared: Open World Survival Craft · Co-op · Base Building

Green Hell
Shared: Open World Survival Craft · Survival · Base Building

RuneScape: Dragonwilds
Shared: Open World Survival Craft · Co-op · Survival

ASTRONEER
Shared: Open World Survival Craft · Co-op · Base Building

Palworld
Shared: Open World Survival Craft · Survival · Co-op

Dune: Awakening
Shared: Open World Survival Craft · Base Building · Survival

ICARUS
Shared: Open World Survival Craft · Base Building · Survival

Miscreated
Shared: Open World Survival Craft · Post-apocalyptic · Survival

Satisfactory
Shared: Base Building · Co-op · Open World Survival Craft

Sons Of The Forest
Shared: Co-op · Survival · Base Building

Subnautica
Shared: Open World Survival Craft · Survival · Base Building

MISERY
Shared: Post-apocalyptic · Survival · Co-op