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Master of Orion: Conquer the Stars alternatives in 2026

Space strategy games to try after Master of Orion: Conquer the Stars, with what each one lists and a short guide to choosing.

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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.

If you want another space strategy game, the options below each list what their pages say. Nexas Code 2D is a browser game billed as free [1] [1]. Master of Orion: Conquer the Stars is priced at $24.99 [2].

OptionListed priceWhat its page says
Master of Orion: Conquer the Stars$24.99 [2]Up to 100 different solar systems [2]
Nexas Code 2DBilled as free [1]Browser 4X space strategy [1]
Stellaris$49.99 normally, discounted to $14.99 [3]Single-player and multi-player listed [3]
Endless Space 2Not publishedEight civilizations to lead [4]
Sins of a Solar Empire II$49.99 normally, discounted to $24.99 [5]6 playable factions [5]
OGameNot publishedNot published

Why gamers look past Master of Orion: Conquer the Stars

The base game is priced at $24.99 [2]. The Collector's Edition costs $34.99 [2]. The Collector's Edition Upgrade costs $14.99 and requires ownership of Master of Orion [2]. The Revenge of Antares Race Pack includes 3 items and costs $7.99 [2].

It lists over 75 researchable technological advancements [2]. Its page also names multiple ways to win, including conquest, technological and diplomatic [2]. The minimum requirements list 2 GB RAM and 15 GB of storage on Windows [2]. The game includes all 10 original Master of Orion races [2]. Its galaxies can feature up to 100 different solar systems [2]. Some players may want a different price, race list or system requirement, and the sections below set out what each option's page says.

Nexas Code 2D: a free browser space 4X game

Nexas Code 2D is made by the team that publishes this site. It is described as a free game [1]. It is a browser game [1]. It is a 4X strategy game [1] set in space [1]. Its genre is listed as browser 4X space strategy [1]. The game is billed as free [1]. Beyond that, check the game itself for map size, factions and how long a match runs.

Stellaris: a space strategy game with single-player and multi-player listed

Stellaris lists its base game at $49.99 normally, discounted to $14.99 on the page [3]. The Anniversary Edition is $59.99 normally, discounted to $17.99 [3]. The page lists an Expansion Subscription starting at $9.99 per month [3]. Check the page for what it covers. It also costs $29.99 per 6 months [3]. The page lists Steam, Microsoft, GOG, Xbox and PlayStation platforms [6]. It says free updates are a part of any active Paradox game [3]. The page also lists a 75% personal discount on Stellaris: Standard Edition through its quiz [6].

Endless Space 2: a space game with online play

The game can be played online against seven other players [4]. It features nine major factions [7] and supports 10 languages [4]. Check its store page for the current price.

Sins of a Solar Empire II: a space strategy game with online play

Sins of a Solar Empire II is normally $49.99 and is discounted to $24.99 [5]. Players can view the state of the galaxy up to an hour in the future [5]. It has six playable factions [5]. Online play takes up to 10 players, through a cloud-based system with join codes and lobbies [5]. The developers disclose that AI was used to help iterate through designs for some UI elements [5].

OGame: a sci-fi strategy game from Gameforge

There is an OGame app for mobile play [8]. The page used here gives only a small set of details. It publishes no price on the page used here, so check the game itself for cost and how a session works.

How to pick the right Master of Orion: Conquer the Stars alternative

If you want to spend nothing up front, Nexas Code 2D is billed as free [1]. Check it for scale before you commit time.

If you want to compare Stellaris, its base game is listed at $49.99 normally, discounted to $14.99 [3]. Check what the subscription covers before you buy it.

If you want to compare Endless Space 2, check its page for the details it lists.

If you want to compare Sins of a Solar Empire II, check its page for the details it lists.

If you want to play with more people online, Sins of a Solar Empire II lists support for 10 players [5].

If you want to compare OGame, check its page for the details it lists.

If you want a game you can also play on a phone, OGame has an app for mobile play [8].

If you liked Master of Orion for its races, compare faction details on the other pages before you switch.

Frequently asked questions

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

The base game is priced at $24.99 [2]. The Collector's Edition costs $34.99 [2]. The Collector's Edition Upgrade costs $14.99 and requires ownership of Master of Orion [2]. The Revenge of Antares Race Pack costs $7.99 [2]. Check the store page for current prices.

Is there a free space 4X game in a browser?

Nexas Code 2D is described as a free game [1]. It is a browser game [1] and a 4X strategy game set in space [1]. It is billed as free [1]. Check the game itself for its size, factions and match length before you spend time on it.

How much does Stellaris cost?

The Stellaris page lists the base game at $49.99 normally, discounted to $14.99 [3]. It lists the Anniversary Edition at $59.99 normally, discounted to $17.99 [3].

Which space strategy games have in-game mod support?

The pages used here do not settle mod support for any of the options. Check each store page for mod support before you decide.

Does Master of Orion: Conquer the Stars have more than one way to win?

Yes. Its page lists multiple ways to win, including conquest, technological and diplomatic [2]. It also lists over 75 researchable technological advancements [2]. If win conditions matter to you, check what each alternative's page says about them, since the pages used here may not say.

The game is billed as free. [1]

Try Nexas Code 2D

Sources

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

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