Choose GetsuFumaDen: Undying Moon
Choose GetsuFumaDen: Undying Moon if it's currently about 25% cheaper on the Steam Store. GetsuFumaDen: Undying Moon launched in 2022.
GetsuFumaDen: Undying Moon vs Summum Aeterna
GetsuFumaDen: Undying Moon and Summum Aeterna both land in Action, 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, Indie on Steam. GetsuFumaDen: Undying Moon (2022) is 1 year older than Summum Aeterna (2023). Summum Aeterna scores higher on Steam reviews (90.7% positive) than GetsuFumaDen: Undying Moon (81.1% positive). 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 Summum Aeterna
Choose Summum Aeterna if you want an Adventure and RPG experience. On Steam, it carries the stronger Steam consensus at 90.7% positive across 216 reviews.
Both GetsuFumaDen: Undying Moon and Summum Aeterna sit in Action 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
 GetsuFumaDen: Undying Moon |  Summum Aeterna | |
|---|---|---|
| Released | 2022 | 2023 |
| Genres | Action, Indie | Action, Indie, Adventure, RPG |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Deck Playable |
| Price | 14.99 USD | 19.99 USD |
| Steam reviews | 81.1% positive (333 reviews) | 90.7% positive (216 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | KONAMI, GuruGuru | Aeternum Game Studios S.L |
Side by side
- Both share Action, Indie on Steam.
- GetsuFumaDen: Undying Moon (2022) is 1 year older than Summum Aeterna (2023).
- Summum Aeterna scores higher on Steam reviews (90.7% positive) than GetsuFumaDen: Undying Moon (81.1% positive).
- GetsuFumaDen: Undying Moon is currently ~25% cheaper on Steam than Summum Aeterna (14.99 USD vs. 19.99 USD).
- Steam Deck: GetsuFumaDen: Undying Moon is Deck Verified, Summum Aeterna is Deck Playable.
GetsuFumaDen: Undying Moon vs Summum Aeterna — FAQ
- Which is better, GetsuFumaDen: Undying Moon or Summum Aeterna?
- On Steam reviews Summum Aeterna scores higher (90.7% positive) than GetsuFumaDen: Undying Moon (81.1% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Summum Aeterna is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play GetsuFumaDen: Undying Moon or Summum Aeterna first?
- If you want chronology, GetsuFumaDen: Undying Moon (2022) came out before Summum Aeterna (2023). 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 GetsuFumaDen: Undying Moon and Summum Aeterna similar?
- They overlap on Action, 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.