Choose POLYARIS
Choose POLYARIS if you want the Adjustable Text Size and Subtitle Options side of the pairing.
POLYARIS vs 30 Days On Ship: Castaway – The First Days
POLYARIS and 30 Days On Ship: Castaway – The First Days both land in Action, Indie, Adventure 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, Indie, Adventure on Steam. 30 Days On Ship: Castaway – The First Days is free; POLYARIS 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 30 Days On Ship: Castaway – The First Days
Choose 30 Days On Ship: Castaway – The First Days if you want a Free To Play and Casual game with Surround Sound, Save Anytime, and #category_playable_at_your_own_pace. On Steam, it's free to play, so the barrier to trying it is zero. 30 Days On Ship: Castaway – The First Days launched in 2026.
Both POLYARIS and 30 Days On Ship: Castaway – The First Days sit in Action, Indie, and Adventure on Steam and both list DualShock Controller Support, DualSense Controller Support, and Custom Volume Controls, 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
 POLYARIS |  30 Days On Ship: Castaway – The First Days | |
|---|---|---|
| Released | — | 2026 |
| Genres | Action, Indie, Adventure, Simulation | Action, Indie, Adventure, Simulation, Free To Play, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Free to play |
| Steam reviews | — | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Magic Pie | Madnetic Games S.A. |
Side by side
- Both share Action, Indie, Adventure on Steam.
- 30 Days On Ship: Castaway – The First Days is free; POLYARIS is paid (Price unknown).
POLYARIS vs 30 Days On Ship: Castaway – The First Days — FAQ
- Are POLYARIS and 30 Days On Ship: Castaway – The First Days similar?
- They overlap on Action, Indie, Adventure 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 30 Days On Ship: Castaway – The First Days free?
- Yes — 30 Days On Ship: Castaway – The First Days is a free-to-play Steam title. POLYARIS is paid (Price unknown).