Choose UnderParty
Choose UnderParty if you want an Indie experience. UnderParty launched in 2020.
UnderParty vs Sister Leticia: The First Mission!
UnderParty and Sister Leticia: The First Mission! both land in Action, 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, Adventure on Steam. UnderParty (2020) is 6 years older than Sister Leticia: The First Mission! (2026). 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 Sister Leticia: The First Mission!
Choose Sister Leticia: The First Mission! if it's the newer release (2026) and ships with the modern feature baseline. Sister Leticia: The First Mission! launched in 2026.
Both UnderParty and Sister Leticia: The First Mission! sit in Action and Adventure 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
 UnderParty |  Sister Leticia: The First Mission! | |
|---|---|---|
| Released | 2020 | 2026 |
| Genres | Action, Indie, Adventure | Action, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 6.99 USD | Price unknown |
| Steam reviews | 86.2% positive (138 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | SekaiFrieden | Cyatt Cafe |
Side by side
- Both share Action, Adventure on Steam.
- UnderParty (2020) is 6 years older than Sister Leticia: The First Mission! (2026).
UnderParty vs Sister Leticia: The First Mission! — FAQ
- Should I play UnderParty or Sister Leticia: The First Mission! first?
- If you want chronology, UnderParty (2020) came out before Sister Leticia: The First Mission! (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 UnderParty and Sister Leticia: The First Mission! similar?
- They overlap on Action, 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.