Sci-Fi MMOs

Browser space strategy MMO · Free-to-play / no pay-to-win

Science-fiction flight-combat MMORPG · Free-to-play

Browser-based sci-fi strategy MMO · Free-to-play

Persistent multiplayer space MMO · Free-to-play Early Access

Robot-themed science-fiction MMORPG · Free-to-play with optional purchases

Sci-fi flight combat MMO · Free-to-play

Browser space 4X MMO · Free-to-play

Browser sci-fi PvP MMO · Free-to-play

Science-fiction social sandbox metaverse · Planned free hub with blockchain-linked ownership

Science-fiction MMORPG · Freemium

Browser action space MMO · Free-to-play with optional purchases

Combined-arms science-fiction wargame · Buy-to-play

Persistent-space strategy MMO · Free open beta with optional founder packs

Cyberpunk pixel MMORPG · Free-to-play / in-app purchases

PvE sandbox space MMO · Buy-to-play

Browser space strategy MMO · Not yet verified

Space Strategy MMORTS · Freemium

Cyberpunk MUD/MMORPG · Free-to-play

Browser sci-fi strategy MMO · Free-to-play

Browser space combat MMO · Free-to-play

Persistent-world space MMO · Free-to-play / planned 2026

Persistent science-fiction MMORTS · Buy-to-play with tiered paid access

Science-fiction sandbox MMORPG / MOBA hybrid · Planned free-to-play release

Space combat MMO · Free-to-play

Sandbox voxel MMO · Buy-to-play

Science-fiction action MMORPG · Free-to-play; optional paid retail pack in Europe

Sci-fi action MMORPG (MOBA-hybrid) · Free-to-play

Sci-fi MMORPG · Free to play

Text-based science-fiction browser MMORPG · Free-to-play with optional premium access

Browser space strategy MMO · Free-to-play

Cyberpunk MUD/MMORPG · Free-to-play

Browser space-combat MMO · Free-to-play with optional purchases

Browser space-combat MMO · Free-to-play with optional Premium and purchases

Persistent space-combat MMORTS · Free-to-play

Sci-fi browser MMORTS · Free-to-play

Shared-world action shooter · Free + Expansions

Third-person shooter action MMORPG · Upcoming

Java browser massively multiplayer online game · Historical browser game

Sci-fi sandbox MMORPG · Premium (Early Access purchase)

Sci-Fi Fantasy MMORPG · Unreleased; no business model was implemented

Sci-fi fantasy open-world MMORPG · Free-to-play

Space simulation MMO · Buy-to-play with subscription

MMO first-person shooter · Free-to-play

Text-based browser MMO strategy · Free to play

Science fiction MMO · Pay-to-play

Post-apocalyptic sci-fi sandbox MMORPG · Free-to-play

Multiplayer Sci-Fi Survival RPG · To be announced; a free pre-alpha demo has been released

Space simulation MMO · Buy-to-play

Browser sci-fi strategy MMO · Free to play

Browser Strategy MMO · Free-to-play

Science-fiction MMORPG · Free to play with a real-cash economy (in-game currency PED converts to real money)

Open-universe sci-fi space MMO · Buy-to-play Early Access

Sci-fi PvP browser MMORPG · Free-to-play

Single-shard space sandbox MMO · Free-to-play Alpha access + Omega subscription

VR space combat shooter · Buy-to-play

Sci-fi fantasy MMORPG · Not yet verified

Sci-fi sandbox MMO/Action RPG · Freemium

Browser 4X space strategy MMO · Free-to-play

Science-fiction shooter MMORPG · Free to play

Cancelled sci-fi mech MMORPG · Not applicable (never released)

Never-released sci-fi MMO · Not applicable - never released

Sci-fi space browser MMO · Free-to-play

Third-person tactical MMO shooter · Free-to-play

Sci-fi survival sandbox MMO · Buy to play

Sci-Fi MMORPG · Free-to-play

Sci-fi MMORPG (never released) · Not applicable; the game was never released

Isometric top-down MMO shooter · Free to play

Never-released space MMO · Not applicable; never released as a playable MMO

Browser sci-fi MMORTS · Free-to-play open beta

Cyberpunk/social roleplay MUD/MMORPG · Free-to-play

Space MMORPG · Free-to-play (formerly subscription)

Space MMORPG · N/A — never released

Sci-fi action MMORPG · Free-to-play / in-app purchases

Sci-fi survival sandbox MMO · Free-to-play (blockchain/Web3 elements)

Browser sci-fi MMORTS · Free-to-play

Battle Royale (massively multiplayer) · Free-to-play (planned)

Browser Cyberpunk Management MMO · Free-to-play

Science-fiction MOO/MMORPG · Free-to-play

Fantasy/sci-fi MUSH/MUD MMORPG · Free-to-play

Cross-platform sci-fi sandbox MMO · Buy-to-play

Browser space strategy MMO · Not yet verified

Cyberpunk MMORPG · Free to play

Cyberpunk shooter MMORPG · Free-to-play

Cyberpunk MMOFPS/RPG · Free-to-play

Tropical science-fiction virtual-world MMO · Free to start with a real-cash economy

Online space sandbox · Buy-to-play

Browser fantasy/sci-fi MMORPG · Free-to-play

Post-apocalyptic fantasy/sci-fi MUD/MMORPG · Free-to-play

Text-based MMO strategy wargame · Free to play

Browser space strategy MMO · Free-to-play open source

Persistent browser space strategy MMO · Free-to-play

Sci-fi turn-based MMO strategy · Free-to-play

Browser space MMORTS · Free-to-play

Browser turn-based sci-fi MMO strategy · Free to play

Science-fiction roleplay MUSH/MMORPG · Free-to-play

Browser 4X space MMO · Free-to-play

Persistent browser space MMORPG · Free-to-play with optional premium features

Science fiction / mech MMO · Free-to-play

Science fiction MMO · Buy-to-play

Science fiction MMO · Freemium

Science-fantasy action MMORPG · Free-to-play with optional purchases

Sci-fi MMOFPS · Premium (one-time purchase)

Treasure-hunting science-fiction virtual-world MMO · Free to start with a real-cash economy

Real-cash-economy science-fiction MMO · Free to start with a real-cash economy

Sci-fi turn-based MMO strategy · Not yet verified

Sci-fi survival MMO · Buy-to-play Early Access

Science-fiction MMORPG · Free-to-play

Sci-fi MMOFPS/RPG virtual world · Free-to-play

Cancelled next-gen sci-fi MMO · Not applicable (never released)

Persistent space simulation MMO · Free-to-play alpha

Browser space economy MMO · Free-to-play with optional Premium subscription

3D sci-fi browser MMORPG · Free-to-play open beta

Space action RPG · Buy-to-play

Korean sci-fi/fantasy MMORPG · Subscription

Browser MMO strategy · Free-to-play

Sci-fi fantasy MMORPG · Free to play with item shop

Science-fiction MMORPG · Free-to-play

Sci-fi action MMORPG · Free-to-play

Cyberpunk roleplay MUD/MMORPG · Free-to-play

Fantasy MMORPG · Free-to-play