OmniSave

Spec sheet

Purpose

OmniSave is a portable game save synchronization tool that redirects saves between a portable location and the system path a game expects.Read 10 Oct 2026 · github.com

Audience

The maker describes the tool as intended to let users carry a gaming session in one folder or drive across machines without manual save management.Read 9 Oct 2026 · github.com

Integrations

Documented compatibility includes CrossOver, Wine, GameHub, Winlator, and Box64.Read 9 Oct 2026 · github.com

Support

The repository page includes a “Support This Project” section but does not state a support service or response commitment.Read 9 Oct 2026 · github.com

Compatibility

The maker says it is designed for Windows and tested on Windows 10, macOS through CrossOver and Wine, and Android through GameHub with Winlator/Box64.Read 10 Oct 2026 · github.com

Game monitoring

Process polling lets OmniSave keep running when a game launcher detaches or spawns background child processes.Read 9 Oct 2026 · github.com

Instance protection

Mutex locking prevents multiple OmniSave instances from running at the same time to avoid save corruption.Read 9 Oct 2026 · github.com

Intended use

The maker says OmniSave is inspired by PortableApps and is intended to let users carry a game session’s saves between machines in one folder or drive.Read 10 Oct 2026 · github.com

Launch options

Its configuration supports arbitrary game launch arguments, including flags such as -nobattleye and -windowed.Read 10 Oct 2026 · github.com

Linux support

Native Linux and Steam Deck support with Proton prefix detection is listed as roadmap work.Read 10 Oct 2026 · github.com

Notable limit

Native Linux and Steam Deck support with Proton prefix detection is listed on the roadmap.Read 9 Oct 2026 · github.com

Path configuration

Configured paths support ~/ expansion for user profile directories and ./ for relative portable paths.Read 10 Oct 2026 · github.com

Path support

Configuration paths support ~/ expansion for user profile directories and ./ for relative portable paths.Read 9 Oct 2026 · github.com

Portable storage

Save data can live on a portable drive or in a cloud-synced folder while the game uses its expected local save path.Read 9 Oct 2026 · github.com

Process monitoring

OmniSave polls the process list so it can remain active when a game launcher detaches or starts child processes.Read 10 Oct 2026 · github.com

Safety

Version 0.2.0 changelog lists atomic file writes via temporary .omnitmp files and propagation of local save deletions to the remote path.Read 9 Oct 2026 · github.com

Security and compliance

The repository identifies the project as MIT licensed and does not state a security certification or compliance standard.Read 9 Oct 2026 · github.com

Security and warranty

The repository provides an MIT license that grants use, copying, modification, and distribution rights and supplies the software without warranty.Read 10 Oct 2026 · github.com

Single-instance safeguard

Mutex locking prevents multiple OmniSave instances from running at the same time to avoid save corruption.Read 10 Oct 2026 · github.com

Storage

The project describes portable drives and cloud-synced folders as possible locations for save data.Read 10 Oct 2026 · github.com

Sync behavior

Version 0.2.0 added atomic file writes and propagation of local save deletions to the remote path during post-sync.Read 10 Oct 2026 · github.com

Workflow

It syncs saves before launching a game, monitors the game process, then syncs saves back after the process exits.Read 10 Oct 2026 · github.com

Where Specifiction places it

• Game Save Managers#20 of 277.3