Choose Heart attack
Choose Heart attack if it's currently about 93% cheaper on the Steam Store. Heart attack launched in 2023.
Heart attack vs What You Didn't See
Heart attack and What You Didn't See 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. Heart attack (2023) is 3 years older than What You Didn't See (2026). Heart attack is currently ~93% cheaper on Steam than What You Didn't See (0.99 USD vs. 14.99 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 What You Didn't See
Choose What You Didn't See if you want an Indie game with Custom Volume Controls, Stereo Sound, and Playable without Timed Input. On Steam, it's the newer release (2026) and ships with the modern feature baseline. What You Didn't See launched in 2026.
Both Heart attack and What You Didn't See 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
 Heart attack |  What You Didn't See | |
|---|---|---|
| Released | 2023 | 2026 |
| Genres | Action, Adventure | Action, Indie, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 0.99 USD | 14.99 USD |
| Steam reviews | 69.8% positive (53 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | LilMemes Production | Supracorpus, Otakutronic |
Side by side
- Both share Action, Adventure on Steam.
- Heart attack (2023) is 3 years older than What You Didn't See (2026).
- Heart attack is currently ~93% cheaper on Steam than What You Didn't See (0.99 USD vs. 14.99 USD).
Heart attack vs What You Didn't See — FAQ
- Should I play Heart attack or What You Didn't See first?
- If you want chronology, Heart attack (2023) came out before What You Didn't See (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 Heart attack and What You Didn't See 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.