Choose Operation Abyss: New Tokyo Legacy
Choose Operation Abyss: New Tokyo Legacy if it's currently about 87% cheaper on the Steam Store. Operation Abyss: New Tokyo Legacy launched in 2017.
Operation Abyss: New Tokyo Legacy vs Undernauts: Labyrinth of Yomi
Operation Abyss: New Tokyo Legacy and Undernauts: Labyrinth of Yomi both land in RPG 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 RPG games on Steam. Operation Abyss: New Tokyo Legacy (2017) is 4 years older than Undernauts: Labyrinth of Yomi (2021). Undernauts: Labyrinth of Yomi scores higher on Steam reviews (83.9% positive) than Operation Abyss: New Tokyo Legacy (61.4% 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 Undernauts: Labyrinth of Yomi
Choose Undernauts: Labyrinth of Yomi if it's the newer release (2021) and ships with the modern feature baseline. Undernauts: Labyrinth of Yomi launched in 2021.
Both Operation Abyss: New Tokyo Legacy and Undernauts: Labyrinth of Yomi sit in RPG 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
 Operation Abyss: New Tokyo Legacy |  Undernauts: Labyrinth of Yomi | |
|---|---|---|
| Released | 2017 | 2021 |
| Genres | RPG | RPG |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Deck Playable |
| Price | 3.99 USD | 29.99 USD |
| Steam reviews | 61.4% positive (70 reviews) | 83.9% positive (87 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | MAGES. Inc., 5pb., Experience Inc. | EXPERIENCE, Poppy Works |
Side by side
- Both are RPG games on Steam.
- Operation Abyss: New Tokyo Legacy (2017) is 4 years older than Undernauts: Labyrinth of Yomi (2021).
- Undernauts: Labyrinth of Yomi scores higher on Steam reviews (83.9% positive) than Operation Abyss: New Tokyo Legacy (61.4% positive).
- Operation Abyss: New Tokyo Legacy is currently ~87% cheaper on Steam than Undernauts: Labyrinth of Yomi (3.99 USD vs. 29.99 USD).
- Both are Deck Playable.
Operation Abyss: New Tokyo Legacy vs Undernauts: Labyrinth of Yomi — FAQ
- Should I play Operation Abyss: New Tokyo Legacy or Undernauts: Labyrinth of Yomi first?
- If you want chronology, Operation Abyss: New Tokyo Legacy (2017) came out before Undernauts: Labyrinth of Yomi (2021). 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 Operation Abyss: New Tokyo Legacy and Undernauts: Labyrinth of Yomi similar?
- They overlap on RPG 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.