Games like UFO Online: Invasion - Mod Kit
Games like UFO Online: Invasion - Mod Kit include Warframe, Albion Online, Neverwinter, Star Trek Online, and Guild Wars 2®. We matched them by the tags players give UFO Online: Invasion - Mod Kit on Steam (Massively Multiplayer, Free to Play, RPG, and Downloadable Content): closest matches first, and among equally close ones the better-known games.

Warframe
Shared: Free to Play · RPG · Massively Multiplayer

Albion Online
Shared: Free to Play · Massively Multiplayer · RPG

Neverwinter
Shared: Free to Play · Massively Multiplayer · RPG

Star Trek Online
Shared: Free to Play · Massively Multiplayer · RPG

Guild Wars 2®
Shared: Free to Play · RPG · Massively Multiplayer

Marvel Rivals
Shared: Free to Play · Massively Multiplayer · RPG

Delta Force
Shared: Free to Play · Massively Multiplayer · Free To Play

Blue Protocol: Star Resonance
Shared: Free to Play · Massively Multiplayer · RPG

Game of Thrones Winter is Coming
Shared: Massively Multiplayer · Free to Play · RPG

Once Human
Shared: Free to Play · Massively Multiplayer · RPG

Mortal Online
Shared: Free to Play · Massively Multiplayer · RPG

Path of Exile
Shared: Free to Play · RPG · Free To Play

Dungeon Fighter Online
Shared: Free to Play · RPG · Massively Multiplayer

Where Winds Meet
Shared: Free to Play · Massively Multiplayer · RPG

Arena Breakout: Infinite
Shared: Free to Play · Massively Multiplayer · RPG

Destiny 2
Shared: Free to Play · Massively Multiplayer · Free To Play

Karos
Shared: Free to Play · Massively Multiplayer · RPG

Trove
Shared: Free to Play · RPG · Massively Multiplayer

The First Descendant
Shared: Free to Play · RPG · Free To Play

Phantasy Star Online 2 New Genesis
Shared: Free to Play · Massively Multiplayer · Free To Play

Blood of Steel
Shared: Free to Play · RPG · Massively Multiplayer

War Thunder
Shared: Free to Play · Massively Multiplayer · Free To Play

Fishing Planet
Shared: Free to Play · Massively Multiplayer · Free To Play

FINAL FANTASY XIV Online
Shared: RPG · Massively Multiplayer