Choose Second Dimension RetroPak Vol. 1
Choose Second Dimension RetroPak Vol. 1 if it's a focused single-player run rather than a multiplayer commitment. Second Dimension RetroPak Vol. 1 launched in 2019.
Second Dimension RetroPak Vol. 1 vs Astro Colony
Second Dimension RetroPak Vol. 1 and Astro Colony both land in Action, Strategy, Indie 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 Action, Strategy, Indie on Steam. Second Dimension RetroPak Vol. 1 (2019) is 7 years older than Astro Colony (2026). Astro Colony is currently ~15% cheaper on Steam than Second Dimension RetroPak Vol. 1 (16.99 USD vs. 19.99 USD). 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 Astro Colony
Choose Astro Colony if you want a Simulation game with Multi-player, Includes Source SDK, and Online Co-op. On Steam, it's the newer release (2026) and ships with the modern feature baseline. 2,585 Steam reviews back the pick.
Both Second Dimension RetroPak Vol. 1 and Astro Colony sit in Action, Strategy, and Indie 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
 Second Dimension RetroPak Vol. 1 |  Astro Colony | |
|---|---|---|
| Released | 2019 | 2026 |
| Genres | Action, Strategy, Indie, Adventure, Casual | Action, Strategy, Indie, Adventure, Simulation, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Deck Playable |
| Price | 19.99 USD | 16.99 USD |
| Steam reviews | 2 reviews | 81.4% positive (2,585 reviews) |
| Multiplayer | Single-player only | Multi-player, Online Co-op, Co-op |
| Developers | Second Dimension, Sly Dog Studios, Retroscribe, FG Soft | Terad Games |
Side by side
- Both share Action, Strategy, Indie on Steam.
- Second Dimension RetroPak Vol. 1 (2019) is 7 years older than Astro Colony (2026).
- Astro Colony is currently ~15% cheaper on Steam than Second Dimension RetroPak Vol. 1 (16.99 USD vs. 19.99 USD).
- Astro Colony has co-op; Second Dimension RetroPak Vol. 1 does not.
- Astro Colony is Deck Playable on Steam Deck; Second Dimension RetroPak Vol. 1 has no Deck rating yet.
Second Dimension RetroPak Vol. 1 vs Astro Colony — FAQ
- Should I play Second Dimension RetroPak Vol. 1 or Astro Colony first?
- If you want chronology, Second Dimension RetroPak Vol. 1 (2019) came out before Astro Colony (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 Second Dimension RetroPak Vol. 1 and Astro Colony similar?
- They overlap on Action, Strategy, Indie 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.
- Does Second Dimension RetroPak Vol. 1 have multiplayer like Astro Colony?
- No. Astro Colony supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while Second Dimension RetroPak Vol. 1 is listed as single-player only.