IMHO.

The Testament of Sherlock Holmes vs Marcella Moon: Saboteurs on the River

The Testament of Sherlock Holmes and Marcella Moon: Saboteurs on the River both land in 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 are Adventure games on Steam. The Testament of Sherlock Holmes (2012) is 8 years older than Marcella Moon: Saboteurs on the River (2020). Marcella Moon: Saboteurs on the River is currently ~60% cheaper on Steam than The Testament of Sherlock Holmes (7.99 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 The Testament of Sherlock Holmes

Choose The Testament of Sherlock Holmes if it matches what drew you to this matchup. 1,181 Steam reviews back the pick.

Choose Marcella Moon: Saboteurs on the River

Choose Marcella Moon: Saboteurs on the River if you want an Indie experience. On Steam, it's currently about 60% cheaper on the Steam Store. Marcella Moon: Saboteurs on the River launched in 2020.

Both The Testament of Sherlock Holmes and Marcella Moon: Saboteurs on the River sit in 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

The Testament of Sherlock Holmes vs Marcella Moon: Saboteurs on the River — Steam metadata comparison
The Testament of Sherlock Holmes — Steam game coverThe Testament of Sherlock HolmesMarcella Moon: Saboteurs on the River — Steam game coverMarcella Moon: Saboteurs on the River
Released20122020
GenresAdventureIndie, Adventure
PlatformsWindowsWindows
Steam DeckDeck PlayableUnrated
Price19.99 USD7.99 USD
Steam reviews76.5% positive (1,181 reviews)4 reviews
MultiplayerSingle-player onlySingle-player only
DevelopersFrogwaresHidden Ocean Games

Side by side

The Testament of Sherlock Holmes vs Marcella Moon: Saboteurs on the River — FAQ

Should I play The Testament of Sherlock Holmes or Marcella Moon: Saboteurs on the River first?
If you want chronology, The Testament of Sherlock Holmes (2012) came out before Marcella Moon: Saboteurs on the River (2020). 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 The Testament of Sherlock Holmes and Marcella Moon: Saboteurs on the River similar?
They overlap on 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.
Does The Testament of Sherlock Holmes run on Steam Deck?
Yes — The Testament of Sherlock Holmes is rated Deck Playable by Valve. Marcella Moon: Saboteurs on the River doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
The Testament of Sherlock Holmes vs Marcella Moon: Saboteurs on the River · imho.run