Project Eagle: A 3D Interactive Mars Base and Mars Horizon both land in Simulation on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Simulation games on Steam. Project Eagle: A 3D Interactive Mars Base (2018) is 2 years older than Mars Horizon (2020). Mars Horizon scores higher on Steam reviews (82.6% positive) than Project Eagle: A 3D Interactive Mars Base (78.7% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Choose Project Eagle: A 3D Interactive Mars Base if you want a Free To Play experience. On Steam, it's free to play, so the barrier to trying it is zero. Project Eagle: A 3D Interactive Mars Base launched in 2018.
Choose Mars Horizon if you want a Strategy and Indie game with Adjustable Text Size, Color Alternatives, and Camera Comfort. On Steam, it carries the stronger Steam consensus at 82.6% positive across 1,445 reviews.
Both Project Eagle: A 3D Interactive Mars Base and Mars Horizon sit in Simulation on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
 Project Eagle: A 3D Interactive Mars Base |  Mars Horizon | |
|---|---|---|
| Released | 2018 | 2020 |
| Genres | Simulation, Free To Play | Strategy, Indie, Simulation |
| Platforms | Windows | Windows, macOS |
| Steam Deck | Deck Playable | Deck Playable |
| Price | Free to play | 19.99 USD |
| Steam reviews | 78.7% positive (367 reviews) | 82.6% positive (1,445 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Blackbird Interactive | Auroch Digital |