Early Access supports Windows, macOS and Linux with a 4 GB storage footprint; Mega Crit also confirms Steam Deck compatibility.
Slay the Spire 2 Early Access officially supports Windows, macOS, and Linux, requires 4 GB of available storage, and is described by Mega Crit as Steam Deck compatible. The requirements are modest, but graphics APIs and operating-system versions differ by platform, so check the exact row rather than relying only on RAM.
Windows requirements
| Tier | CPU | Memory | Graphics | OS and storage |
|---|---|---|---|---|
| Minimum | Dual-core 2.0 GHz | 4 GB RAM | DirectX 12 or Vulkan compatible, 1 GB VRAM | Windows 10 64-bit; 4 GB |
| Recommended | Quad-core 3.0 GHz | 8 GB RAM | DirectX 12 or Vulkan compatible, 2 GB VRAM | Windows 10 64-bit; 4 GB |
macOS requirements
The minimum is macOS 12 Monterey, a dual-core Intel Core i5, 4 GB RAM, a Metal-compatible GPU with 1 GB VRAM, and 4 GB storage. The recommended tier is macOS 15 Sequoia, Apple Silicon M1 or a quad-core Intel Core i5, 8 GB RAM, a Metal-compatible GPU with 2 GB VRAM, and 4 GB storage.
Linux and SteamOS requirements
The minimum is Ubuntu 20.04 LTS or SteamOS 3.0, a dual-core 2.0 GHz x86_64 CPU, 4 GB RAM, Vulkan 1.0 or OpenGL 3.3 graphics with 1 GB VRAM, and 4 GB storage. The recommended tier moves to Ubuntu 22.04 LTS, a quad-core 3.0 GHz CPU, 8 GB RAM, and 2 GB VRAM while retaining the 4 GB storage figure.
Mega Crit separately confirms Steam Deck compatibility in its FAQ. That statement is more reliable than inferring Deck support only from the Linux table. Exact battery life, frame rate, and control preferences are not specified in the official requirements.
Current platform boundary
Early Access is currently on Steam for Windows, macOS, and Linux. Mega Crit says it hopes to reach as many additional platforms as possible, but console and mobile versions are expected after Early Access rather than included today. Do not purchase based on an unofficial console release date.
For gameplay decisions, return to the beginner guide. If a feature is missing despite meeting the hardware requirement, check the Early Access roadmap to confirm whether it exists on the default branch.
Sources
QUICK ANSWERS
Questions players ask next
Does Slay the Spire 2 run on Mac and Linux?
Yes. Steam publishes requirements for Windows, macOS, and Linux during Early Access.
Is Slay the Spire 2 Steam Deck compatible?
Yes. Mega Crit's official FAQ says it is Steam Deck compatible.
How much storage does Slay the Spire 2 need?
Steam lists 4 GB of available storage for the minimum and recommended specifications on all three desktop platforms.