Choose Disco Simulator: Prologue
Choose Disco Simulator: Prologue if you want a Free To Play experience. On Steam, it's free to play, so the barrier to trying it is zero. Disco Simulator: Prologue launched in 2023.
Disco Simulator: Prologue vs 687 Days on Mars
Disco Simulator: Prologue and 687 Days on Mars both land in Indie, Adventure, 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 share Indie, Adventure, Simulation on Steam. Disco Simulator: Prologue (2023) is 3 years older than 687 Days on Mars (2026). Disco Simulator: Prologue is free; 687 Days on Mars is paid (Price unknown). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose 687 Days on Mars
Choose 687 Days on Mars if you want an Action experience. On Steam, it's the newer release (2026) and ships with the modern feature baseline. 687 Days on Mars launched in 2026.
Both Disco Simulator: Prologue and 687 Days on Mars sit in Indie, Adventure, and 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.
Side-by-side comparison
 Disco Simulator: Prologue |  687 Days on Mars | |
|---|---|---|
| Released | 2023 | 2026 |
| Genres | Indie, Adventure, Simulation, Free To Play, Casual | Action, Indie, Adventure, Simulation, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | Free to play | Price unknown |
| Steam reviews | 79.2% positive (48 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Games Incubator, Frozen Cave Studio | Games Incubator, Frozen Cave Studio |
Side by side
- Both share Indie, Adventure, Simulation on Steam.
- Disco Simulator: Prologue (2023) is 3 years older than 687 Days on Mars (2026).
- Disco Simulator: Prologue is free; 687 Days on Mars is paid (Price unknown).
- Disco Simulator: Prologue is Deck Playable on Steam Deck; 687 Days on Mars has no Deck rating yet.
Disco Simulator: Prologue vs 687 Days on Mars — FAQ
- Should I play Disco Simulator: Prologue or 687 Days on Mars first?
- If you want chronology, Disco Simulator: Prologue (2023) came out before 687 Days on Mars (2026). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Disco Simulator: Prologue and 687 Days on Mars similar?
- They overlap on Indie, Adventure, Simulation on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Is Disco Simulator: Prologue free?
- Yes — Disco Simulator: Prologue is a free-to-play Steam title. 687 Days on Mars is paid (Price unknown).
- Does Disco Simulator: Prologue run on Steam Deck?
- Yes — Disco Simulator: Prologue is rated Deck Playable by Valve. 687 Days on Mars doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.