Games like Light of Altair

"Imagine Earth is a single-player Science Fiction RTS game with a good plot and fabulous visuals. Colonize distant planets, manage resources, and deal with threats like asteroid strikes while balancing corporate profits with preserving living conditions for your people. Research technologies, build cities, and trade resources in space as you expand and maximize growth."

Endless Space is a turn-based 4X strategy game set in space. Players choose one of several unique civilizations, each with their own strengths, weaknesses, and victory conditions. Explore the galaxy, build and upgrade your empire, research new technologies, and engage in tactical space combat in this expansive and engaging game. With deep customization options and a variety of ways to win, Endless Space offers nearly limitless replayability.

"Star Ruler 2" is a real-time grand strategy game that allows players to build and manage their own space empire. With fully destructible planets and a procedurally generated galaxy, players can engage in interstellar warfare, diplomacy, and research to expand their territory and ensure their species' survival. The game also features a multi-threaded simulation engine, enabling large-scale battles and complex political dynamics.

"Horizon" is a single-player Science Fiction Turn Based Strategy game, offering about 4 hours of playtime. It features advanced turn-based tactical combat, full tactical ship control, and exploration of a vast, interactive galaxy with ten unique alien species. Colonize, trade, and defend your territory to expand humanity's reach beyond the known horizon.

In AI War: Fleet Command, you lead a small human resistance force against an AI overlord that has defeated humanity in a brutal war. With faster ships and automated defenses, your mission is to outsmart and defeat the AI subcommanders, avoiding detection by central processing until it's too late. This challenging real-time strategy game demands strategic thinking and careful resource management to overcome overwhelming odds.

Surviving Mars is a sci-fi city builder that challenges you to establish a thriving colony on the Red Planet. Choose a space agency, select a colony site, and manage resources, infrastructure, and colonist needs to ensure their survival. Embrace the challenges of Mars' hostile environment, conduct research, and utilize drones to expand your settlement. Ultimately, your goal is to discover the purpose of mysterious black cubes and make Mars habitable for future generations.

In "Before We Leave," gently guide a newly reemerged civilization across a cozy universe. Build peaceful settlements, manage resources, and trade between islands and planets. Overcome challenges, discover ancient technologies, and ensure your Peeps' happiness in this relaxing city-building game. Explore six biomes and avoid the mistakes of the past to create a thriving solar system.

Galactic Civilizations III is a turn-based strategy game that allows players to build and lead their own space empire. Explore new technologies, contact alien civilizations, and manage resources as you expand across the galaxy. A deep and complex experience, with a variety of ways to achieve victory and numerous customization options, ensuring high replay value.

Endless Sky is a 2D space trading and combat game inspired by the Escape Velocity series. Explore a vast galaxy filled with hundreds of star systems, planets, and alien species, while completing missions, trading goods, and upgrading your ship. With a strong focus on customization and open-ended gameplay, Endless Sky offers a rich and immersive space exploration experience. The game is free, open-source, and available on multiple platforms.

Particle Fleet: Emergence is a real-time strategy game that takes place in space. Players must build and command a fleet of ships made out of particles, using them to fight against enemy forces and complete objectives. The game features a variety of upgrades and abilities to customize your fleet, as well as a campaign and skirmish mode for replayability. Construct and battle with particle ships in this unique space RTS.