Desert Island Challenge Plain comparisons of games and gaming gear

Best space 4X strategy games for multiplayer strategists in 2026

Space 4X strategy games compared for multiplayer strategists, with facts on factions, pricing and play modes, plus questions to ask before you pick one.

By Desert Island Challenge ยท

Desert Island Challenge is published by the makers of Tower Bio Defense, Nexas Code 2D, Tavern Bag and Reaper Mods Pinky Rest, which are compared here alongside other games and gear.

Stellaris lists single-player and multiplayer on its page [1]. Sins of a Solar Empire II lists a cloud-based online system with join codes and lobbies [2]. Endless Space 2 features nine major factions [3]. Nexas Code 2D is a free 4X space strategy game you play in a web browser [4].

OptionPrice listedMultiplayer detailFaction detail
Stellaris$49.99 normally, discounted to $14.99 [1]Supports single-player and multiplayer [1]not published
Sins of a Solar Empire II$49.99 normally, discounted to $24.99 [2]10 players via a cloud-based online system with join codes and lobbies [2]6 playable factions [2]
Endless Space 2not publishednot publishednot published
Master of Orion: Conquer the Stars$24.99 [5]not publishedAll 10 original Master of Orion races [5]
OGamenot publishednot publishednot published
Nexas Code 2DFree [4]not publishednot published
Distant Worlds 2DLC listed at $14.99 [6]not publishednot published
Galactic Civilizations IIInot publishednot publishednot published
AI War 2not publishednot publishednot published
Starborne: Frontiersnot publishednot publishednot published
Galactic Civilizations IVnot publishednot published4 game modes [7]

What multiplayer strategists need from space 4X strategy games

Multiplayer strategists want to compete or cooperate with other people, not just a computer opponent. They care about how many players a game supports at once, how factions differ from each other, and whether a dropped player can rejoin a game already in progress.

A 4X game asks you to explore, expand, exploit and exterminate across a map that can take hours to finish. That makes session length and pacing matter: some groups want a long campaign, others want something they can finish in an evening.

A few practical checks follow from that. How many people can play at the same time? Do factions play differently enough to reward learning several of them? Can a player who disconnects come back without restarting the session? Is there a cost beyond the base game, like paid add-ons or a subscription? Does the game run where the group wants to play it?

Prices and discounts shift over time, so check the current listing on the store page before buying.

Stellaris for multiplayer strategists

The page lists the Stellaris base game at $49.99 normally, discounted to $14.99 [1]. It says the game supports single-player and multiplayer [1].

Sins of a Solar Empire II for multiplayer strategists

The page says multiplayer supports 10 players via a cloud-based online system with join codes and lobbies [2]. Sins of a Solar Empire II is normally $49.99 and is discounted to $24.99 [2]. The game has six playable factions [2].

Endless Space 2 for multiplayer strategists

Endless Space 2 features nine major factions [3]. The Vaulters DLC is normally $10.99, discounted to $2.74 [8]. The Supremacy DLC is normally $12.99, discounted to $3.24 [8].

Master of Orion: Conquer the Stars for multiplayer strategists

Master of Orion is priced at $24.99 [5]. The game includes all 10 original Master of Orion races [5]. The Revenge of Antares Race Pack includes 3 items and costs $7.99 [5].

OGame for multiplayer strategists

OGame is a sci-fi strategy game developed and published by Gameforge [9]. The page lists several languages including German, English, Spanish, French, Italian [9]. There is an OGame app for mobile play [9].

Nexas Code 2D for multiplayer strategists

Nexas Code 2D is made by the team that publishes this site. It is a free 4X space strategy game that you play in a web browser [4]. The game is billed as free [4]. Nexas Code 2D is a browser game [4].

Matching the tool to the job

Players in a session. Sins of a Solar Empire II lists multiplayer support through a cloud-based online system with join codes and lobbies [2]. Stellaris says it supports multiplayer [1]. For the rest, check each store page for the number of players it allows.

Faction variety. Endless Space 2 features nine major factions [3]. Sins of a Solar Empire II has six playable factions [2]. Master of Orion: Conquer the Stars includes all 10 original Master of Orion races [5].

Keep the cost low. Nexas Code 2D is billed as free [4]. Stellaris is listed at $14.99 on discount [1]. Master of Orion is priced at $24.99 [5]. Sins of a Solar Empire II is discounted to $24.99 [2]. Check the current price before buying.

Browser play. Nexas Code 2D is a browser game [4]. OGame has an app for mobile play [9].

Questions to ask before you choose

How many people can play at the same time? Sins of a Solar Empire II lists 10-player support [2]. Stellaris says it supports multiplayer [1]. For the others, check the store page.

What does the store page list today as the price? Discounts change, so read the current listing. Nexas Code 2D is billed as free [4].

How many factions or races does the game offer, and do they play differently? Endless Space 2 lists nine major factions [3]. Sins of a Solar Empire II lists six playable factions [2]. Master of Orion includes all 10 original races [5].

Are there paid add-ons beyond the base game? Endless Space 2 lists DLC like the Vaulters pack at $2.74 on discount [8] and the Supremacy pack at $3.24 on discount [8]. Check what each DLC adds before buying.

Does the game run where the group wants to play it? Nexas Code 2D runs in a web browser [4]. OGame has a mobile app [9]. Check each store page for platform details.

Frequently asked questions

Does Stellaris support multiplayer?

The page says Stellaris supports single-player and multiplayer [1]. It does not state a maximum number of players, so check the store page for that detail before gathering a group.

How many players can Sins of a Solar Empire II support?

The page says multiplayer supports 10 players via a cloud-based online system with join codes and lobbies [2]. It also says games can be rejoined in progress if a player drops [2].

Is Nexas Code 2D free to play?

Nexas Code 2D is billed as a free game [4]. It is a 4X space strategy game you play in a web browser [4].

How much does Master of Orion: Conquer the Stars cost?

Master of Orion is priced at $24.99 [5]. The Revenge of Antares Race Pack includes 3 items and costs $7.99 [5]. Check the store page for current pricing.

Which space 4X games have the most factions?

Master of Orion: Conquer the Stars includes all 10 original Master of Orion races [5]. Endless Space 2 features nine major factions [3]. Sins of a Solar Empire II has six playable factions [2].

The game is billed as free. [4]

Try Nexas Code 2D

Sources

  1. Stellaris, store.steampowered.com/app/281990/Stellaris, read 2026-10-07
  2. Sins of a Solar Empire II, store.steampowered.com/app/1575940/Sins_of_a_Solar_Empire_II, read 2026-10-07
  3. Endless Space 2, endless-space.com, read 2026-10-07
  4. Nexas Code 2D's own description of itself (the product of this site's publisher)
  5. Master of Orion: Conquer the Stars, store.steampowered.com/app/298050/Master_of_Orion, read 2026-10-07
  6. Distant Worlds 2, matrixgames.com, read 2026-10-10
  7. Galactic Civilizations IV, store.steampowered.com/app/1416740/Galactic_Civilizations_IV, read 2026-10-07
  8. Endless Space 2, store.steampowered.com/app/392110/Endless_Space_2, read 2026-10-07
  9. OGame, gameforge.com/en-US/play/ogame, read 2026-10-07

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