Choose UNDEFINED: ILS
Choose UNDEFINED: ILS if you want an Indie and Simulation experience.
UNDEFINED: ILS vs NULL
UNDEFINED: ILS and NULL 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. 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 NULL
Choose NULL if you want the Subtitle Options, Custom Volume Controls, and Keyboard Only Option side of the pairing. NULL launched in 2026.
Both UNDEFINED: ILS and NULL sit in Adventure on Steam and both list Playable without Timed Input, Mouse Only Option, and Touch Only Option, 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
 UNDEFINED: ILS |  NULL | |
|---|---|---|
| Released | — | 2026 |
| Genres | Indie, Adventure, Simulation | Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | 4.99 USD |
| Steam reviews | — | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Kamekichi | Merelab |
Side by side
- Both are Adventure games on Steam.
UNDEFINED: ILS vs NULL — FAQ
- Are UNDEFINED: ILS and NULL 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.