Ad Infinitum
Cheapest right now: $3.13 USD at GameBillet (91% off). 11 stores compared, checked 8 Oct 2026. Lowest price on record: $2.79.
When reality is a nightmare, nightmares become real. In this psychological horror game, you fight the terrifying creatures invading your mind. Can you save your sanity?
Platforms: Windows
Steam Deck: Playable. Valve rates it as working on Steam Deck, but it may need some extra effort to set up or to use.
| Store | Price | Discount |
|---|---|---|
| GameBillet | $3.13 | 91% |
| Fanatical | $3.14 | 91% |
| Steam | $3.49 | 90% |
| WinGameStore | $3.49 | 90% |
| GamersGate | $3.50 | 90% |
| Gamesplanet | $31.49 | 10% |
| Humble Store | $34.99 | — |
| GOG | $34.99 | — |
| GreenManGaming | $34.99 | — |
| Epic Games Store | $34.99 | — |
| IndieGala | $34.99 | — |
Is it a good deal right now?
A solid discount (91% off), but it has been cheaper: the lowest price on record is $2.79 (Mar 2026), 11% below today's $3.13 USD at GameBillet. The regular price is $34.99, so $3.13 saves $31.86. The next cheapest store is Fanatical at $3.14, $0.01 more. The Steam discount ends on 8 October 2026 at 17:00 UTC.
Price history
There is no chart yet: we record a game's cheapest price each day from the first time it is looked at here, and a chart needs two days of prices. It appears on this page once we have them.
System requirements
Windows
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Intel Core i5-8400 or AMD Ryzen 5 1600X
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 750 Ti, 2 GB or AMD Radeon RX 7850, 2 GB or Intel Arc A380, 6 GB
- DirectX: Version 11
- Storage: 21 GB available space
- Additional Notes: To run at Low 720p @ 30 FPS
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Intel Core i5-10400 or AMD Ryzen 5 3600
- Memory: 12 GB RAM
- Graphics: NVIDIA GeForce RTX 3060, 12 GB or AMD Radeon RX 6650 XT, 8 GB
- DirectX: Version 11
- Storage: 21 GB available space
As listed on the game's Steam page.
Steam wishlist sale checker
Paste your Steam profile to see which games on your wishlist are on sale right now, and the cheapest store for each. Your wishlist needs to be public.
Free to keep once claimed. Listings from the Epic Games Store and GamerPower.
See which games on your Steam wishlist are on sale