Box64

Spec sheet

Purpose

Box64 runs x86_64 Linux programs, including games, on non-x86_64 Linux systems.Read 30 Sep 2026 · box86.org

License

The Box64 repository provides the software under the MIT License.Read 30 Sep 2026 · github.com

Maker

The About page identifies ptitSeb as the author of Box64 and says he is a freelance developer.Read 29 Sep 2026 · box86.org

32-bit limit

Box64 is for 64-bit programs; the README directs users to Box86 or Box32 for 32-bit binaries, and describes Box32 as experimental.Read 30 Sep 2026 · github.com

Cache limit

DynaCache is enabled by default and its compressed files can use up to 2 GB by default.Read 29 Sep 2026 · github.com

Compatibility

The maker maintains a game compatibility list with working, partially working, not working, and unknown statuses.Read 30 Sep 2026 · box86.org

Configuration

Behavior can be configured through environment variables and INI-style configuration files at /etc/box64.box64rc and ~/.box64rc.Read 30 Sep 2026 · github.com

DynaCache

DynaCache is enabled by default, stores generated code under ~/.cache/box64, and uses up to 2 GB by default.Read 30 Sep 2026 · github.com

Dynamic recompilation

Its DynaRec backends for Arm, RISC-V, and LoongArch are described as 5–10 times faster than the interpreter alone.Read 30 Sep 2026 · github.com

Dynamic recompiler

DynaRec supports Arm, RISC-V, and LoongArch and is described as 5–10 times faster than the interpreter alone.Read 29 Sep 2026 · github.com

Gaming compatibility

The project links to a compatibility list of games confirmed to run or not run with Box64.Read 29 Sep 2026 · box86.org

Host requirement

Box64 requires a 64-bit little-endian host and 64-bit host libraries.Read 30 Sep 2026 · github.com

Native libraries

Box64 uses native system libraries such as libc, libm, SDL, and OpenGL to integrate with applications.Read 30 Sep 2026 · github.com

Steam and Wine

Box64 supports Wine64 and Proton; 32-bit components require Box86, while Wine WOW64 support in Box64-only environments is described as experimental.Read 30 Sep 2026 · github.com

Support and maintainer

The project author identifies as ptitSeb, a freelance developer, and invites people to contact him about helping their projects.Read 30 Sep 2026 · box86.org

Supported host architectures

The project targets ARM64, RISC-V 64-bit, and LoongArch Linux devices.Read 30 Sep 2026 · github.com

Supported hosts

The project targets ARM64, RISC-V 64-bit, and LoongArch Linux devices.Read 29 Sep 2026 · github.com

Where Specifiction places it

• Game Compatibility Layers#15 of 277.3