Choose Tranquil Cove
Choose Tranquil Cove if you want an Early Access experience. On Steam, it's currently about 67% cheaper on the Steam Store. Tranquil Cove launched in 2021.
Tranquil Cove vs Heart-Lung Machine
Tranquil Cove and Heart-Lung Machine 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. Tranquil Cove (2021) is 3 years older than Heart-Lung Machine (2024). Tranquil Cove is currently ~67% cheaper on Steam than Heart-Lung Machine (2.99 USD vs. 8.99 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 Heart-Lung Machine
Choose Heart-Lung Machine if it's the newer release (2024) and ships with the modern feature baseline. Heart-Lung Machine launched in 2024.
Both Tranquil Cove and Heart-Lung Machine sit in Action, Indie, and Adventure on Steam and both list Tracked Controller Support and VR Only, 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
 Tranquil Cove |  Heart-Lung Machine | |
|---|---|---|
| Released | 2021 | 2024 |
| Genres | Action, Indie, Adventure, Early Access | Action, Indie, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Deck Unsupported |
| Price | 2.99 USD | 8.99 USD |
| Steam reviews | 93.8% positive (16 reviews) | 8 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Roger Kaffer, Sky Hawk Bressette | Hermann Hetzer |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Tranquil Cove (2021) is 3 years older than Heart-Lung Machine (2024).
- Tranquil Cove is currently ~67% cheaper on Steam than Heart-Lung Machine (2.99 USD vs. 8.99 USD).
- Heart-Lung Machine is Deck Unsupported on Steam Deck; Tranquil Cove has no Deck rating yet.
Tranquil Cove vs Heart-Lung Machine — FAQ
- Should I play Tranquil Cove or Heart-Lung Machine first?
- If you want chronology, Tranquil Cove (2021) came out before Heart-Lung Machine (2024). 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 Tranquil Cove and Heart-Lung Machine 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.