Choose Doom & Destiny Worlds
Choose Doom & Destiny Worlds if you want an Indie experience. On Steam, it's Steam Deck Verified, so handheld play works out of the box. Doom & Destiny Worlds launched in 2020.
Doom & Destiny Worlds vs Harmonic Catastrophe
Doom & Destiny Worlds and Harmonic Catastrophe 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. Harmonic Catastrophe is free; Doom & Destiny Worlds is paid (5.99 USD). Both support cooperative play. 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 Harmonic Catastrophe
Choose Harmonic Catastrophe if you want an Action, Adventure, and Free To Play game with Online Co-op. On Steam, it's free to play, so the barrier to trying it is zero.
Both Doom & Destiny Worlds and Harmonic Catastrophe sit in RPG on Steam and both list Multi-player, Shared/Split Screen, and Shared/Split Screen Co-op, 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
 Doom & Destiny Worlds |  Harmonic Catastrophe | |
|---|---|---|
| Released | 2020 | — |
| Genres | Indie, RPG | Action, Adventure, RPG, Free To Play |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 5.99 USD | Free to play |
| Steam reviews | 77.6% positive (49 reviews) | — |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Multi-player, Cross-Platform Multiplayer, Online Co-op |
| Developers | Heartbit Interactive | Splinternova |
Side by side
- Both are RPG games on Steam.
- Harmonic Catastrophe is free; Doom & Destiny Worlds is paid (5.99 USD).
- Both support cooperative play.
- Doom & Destiny Worlds is Deck Verified on Steam Deck; Harmonic Catastrophe has no Deck rating yet.
Doom & Destiny Worlds vs Harmonic Catastrophe — FAQ
- Are Doom & Destiny Worlds and Harmonic Catastrophe 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.
- Do both Doom & Destiny Worlds and Harmonic Catastrophe have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Doom & Destiny Worlds ships Shared/Split Screen Co-op, Co-op; Harmonic Catastrophe ships Online Co-op, Shared/Split Screen Co-op.
- Is Harmonic Catastrophe free?
- Yes — Harmonic Catastrophe is a free-to-play Steam title. Doom & Destiny Worlds is paid (5.99 USD).
- Does Doom & Destiny Worlds run on Steam Deck?
- Yes — Doom & Destiny Worlds is rated Deck Verified by Valve. Harmonic Catastrophe doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.