Games like High Frontier 4 All
Games like High Frontier 4 All include Stellaris, Sid Meier's Civilization®: Beyond Earth™, Terraforming Mars, Sid Meier’s Civilization® VI, and BattleTech. We matched them by the tags players give High Frontier 4 All on Steam (Strategy, Board Game, Space, Action-Adventure, and Exploration): closest matches first, and among equally close ones the better-known games.

Stellaris
Shared: Strategy · Space · Exploration

Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Space · Turn-Based Strategy

Terraforming Mars
Shared: Strategy · Board Game · Space

Sid Meier’s Civilization® VI
Shared: Strategy · Multiplayer · Turn-Based Strategy

BattleTech
Shared: Strategy · Turn-Based Tactics · Turn-Based Strategy

Tabletop Simulator
Shared: Board Game · Tabletop · Multiplayer

No Man's Sky
Shared: Space · Exploration · Multiplayer

Nexus 5X
Shared: Strategy · Board Game · Tabletop

Elite Dangerous
Shared: Space · Exploration · Multiplayer

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Space · Multiplayer

ENDLESS Space™ - Definitive Edition
Shared: Strategy · Space · Multiplayer

Gremlins, Inc.
Shared: Board Game · Strategy · Tabletop

Heroes of Might and Magic: Olden Era
Shared: Strategy · Multiplayer · Turn-Based Strategy

ENDLESS Space™ 2
Shared: Strategy · Space · Multiplayer

Through the Ages
Shared: Strategy · Board Game · Tabletop

Blood Bowl 2: Legendary Edition (Classic)
Shared: Strategy · Board Game · Multiplayer

Axis and Allies 1942 Online
Shared: Board Game · Strategy · Tabletop

For The King II
Shared: Strategy · Board Game · Turn-Based Strategy

Dota Underlords
Shared: Strategy · Multiplayer · Board Game

XCOM: Enemy Unknown
Shared: Strategy · Turn-Based Strategy · Tactical

XCOM®: Chimera Squad
Shared: Strategy · Turn-Based Strategy · Turn-Based Tactics

Warhammer 40,000: Battlesector
Shared: Strategy · Turn-Based Strategy · Turn-Based Tactics

Space Hulk (Classic)
Shared: Strategy · Board Game · Turn-Based Strategy

Root
Shared: Board Game · Strategy · Tabletop