BizHawk 2.11.1 gathers more than forty systems into one window: ten save slots plus unlimited named states, frame advance with instant rewind, memory editing, Lua and C# scripting, and the piano roll style TAStudio.

PCSX-Redux is an open source fork of PCSX that drops the plugin system for one monolith, then adds a GDB server, Ghidra hooks, a Lua interface and a VRAM viewer. There is no version number: the builds ship as rolling snapshots of the main branch.

Vita3K is an open source PS Vita emulator written in C++, shipping nightly builds for Windows, Linux, macOS and Android. More than half the tested titles are marked playable.

An open source 3DS emulator taken over by its community, assembled from two branches that each kept the earlier code moving, published under GPL-3.0, with builds for Windows, macOS and Linux and a release rhythm that has stayed alive.

An open source framework for PC games that takes over rendering and input while a game runs. It offers a frame limiter tuned for variable refresh rate, adds high dynamic range to titles that never shipped it, and lets games designed for one controller recognise others.

A long-running controller mapping tool that presents wheels, joysticks and other gamepads to the system as a standard gamepad, so old games that accept only one kind of input can see them. This release hands rumble to the real controller and allows formulas in mapping rows.

An open-source emulator for GameCube and Wii that runs those games on a computer in full HD 1080p, works with ordinary PC controllers and supports netplay. The current build is 2609a.

A free open source tool for importing games in bulk and managing cover art, covering emulator ROMs and games from other platforms, with fuzzy matching and more than a hundred presets built in and builds for Windows, macOS and Linux.

Bind every stick, trigger and button to a key, a mouse movement or a macro, tune the deadzone and the response curve, and let profiles switch themselves when a game starts. Free and open.

Cemu runs the previous generation console library on a modern PC at several times the original resolution, maps motion input onto a current gamepad, and became markedly faster once the project went open source.

A decade of PC games ends up spread over five launchers, and remembering which one holds an old favourite is the first chore of the evening. Playnite imports them all into one wall of covers.

The first PlayStation left behind a catalogue nobody can count. Connecting the original hardware to a modern television does not do it justice. DuckStation rebuilds the presentation: resolution scaling, texture filtering, geometry correction and widescreen patches.

Heroic pulls the store libraries into a single window: sign in once per store, browse and install from one list, keep updates and cloud saves in one place, and set compatibility layers from a dropdown instead of a command line, on three desktop systems and on handhelds.

DeSmuME is the oldest open-source emulator for the handheld with two stacked screens, maintained since 2006 and available for the three desktop systems. A scaling factor pulls 3D scenes far past the native 256x192, a dynamic recompiler covers slow machines, and the frame-accurate toolchain with a scripting debugger is what makes it a workbench rather than a toy.

Vortex is the official mod manager for the largest mod hosting site, with a lineage going back to an earlier manager from the same team. It sorts load order on its own, detects conflicts, installs and removes mods in one action without leftovers, keeps separate profiles per save, and can install a curated collection in the right order. GPL-3, hundreds of games, stable 1.16.8.