21 Days
- Platforms: PC
- Developer: Hardtalk Studio
- Year: 2017
- Genres: Adventure, Indie, Simulation
- Tags: Single-player, Steam Achievements, Steam Trading Cards, Partial Controller Support, Family Sharing
- Operating systems: Windows, macOS
Price comparison
Prices as listed by the stores, updated 2026-10-25. The store price is final.
21 Days is a Adventure, Indie, Simulation game from 2017 by Hardtalk Studio. Available on PC. This page lists the system requirements, a quick check of whether your PC can run it, and a price comparison between stores.
Quick check
This check compares memory and disk space only. Compare your CPU and graphics card with the requirements above manually.Minimum requirements
Minimum: OS *: Windows XP/Vista/7/8/10 Processor: 1.6GHz