Choose Idle Factory
Choose Idle Factory if you want a Simulation and Casual experience. Idle Factory launched in 2022.
Idle Factory vs King Of The Hollow Circuit
Idle Factory and King Of The Hollow Circuit both land in Indie 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 Indie games on Steam. Idle Factory (2022) is 4 years older than King Of The Hollow Circuit (2026). King Of The Hollow Circuit is currently ~20% cheaper on Steam than Idle Factory (3.99 USD vs. 4.99 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 King Of The Hollow Circuit
Choose King Of The Hollow Circuit if you want the Custom Volume Controls, Mouse Only Option, and Save Anytime side of the pairing. On Steam, it's currently about 20% cheaper on the Steam Store. King Of The Hollow Circuit launched in 2026.
Both Idle Factory and King Of The Hollow Circuit sit in Indie 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
 Idle Factory |  King Of The Hollow Circuit | |
|---|---|---|
| Released | 2022 | 2026 |
| Genres | Indie, Simulation, Casual | Indie |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 4.99 USD | 3.99 USD |
| Steam reviews | 50% positive (12 reviews) | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | okyakusama | SavicNode |
Side by side
- Both are Indie games on Steam.
- Idle Factory (2022) is 4 years older than King Of The Hollow Circuit (2026).
- King Of The Hollow Circuit is currently ~20% cheaper on Steam than Idle Factory (3.99 USD vs. 4.99 USD).
- Idle Factory is Deck Playable on Steam Deck; King Of The Hollow Circuit has no Deck rating yet.
Idle Factory vs King Of The Hollow Circuit — FAQ
- Should I play Idle Factory or King Of The Hollow Circuit first?
- If you want chronology, Idle Factory (2022) came out before King Of The Hollow Circuit (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 Idle Factory and King Of The Hollow Circuit similar?
- They overlap on Indie 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 Idle Factory run on Steam Deck?
- Yes — Idle Factory is rated Deck Playable by Valve. King Of The Hollow Circuit doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.