A MSI Afterburner alternative for NVIDIA users in Linux. - iloveichigo/NVBurner

Enthusiast kernel optimized for low latency

Command-line interface to install and execute Steam games - berenm/steam-cli

A simple GOG client for Linux that lets you download and play your GOG Linux games

Python Program that downloads gaming required packages based on your Linux Distribution. - ahmed-al-balochi/LibreGaming

Wine-wayland allows playing DX9/DX11 and Vulkan games using pure wayland and Wine/DXVK. - varmd/wine-wayland

Vulkan-based implementation of D3D8, 9, 10 and 11 for Linux / Wine - doitsujin/dxvk

Free and Open Source game center for Linux, Native and Wine pre-configured games. - AbdelrhmanNile/steal

linux-tkg custom kernels.

Compatibility tool for Steam Play based on Wine and additional components - GloriousEggroll/proton-ge-custom

Issue tracking for the Steam for Linux beta client - ValveSoftware/steam-for-linux

The documentation of the Vinegar project, which makes Roblox on Linux more convenient.

A simple ROM downloader.

Wordle clone for Unix and Windows Terminals in C .

A free and open-source game-center for linux. Pre-configured Wine and Native Games for Linux. - AbdelrhmanNile/UnderTaker141

Profile based system control utility

Rust TUI client for steamcmd.

a vulkan post processing layer for linux.

Steam Play compatibility tool to run DOS games using native Linux DOSBox - dreamer/boxtron

Optimise Linux system performance on demand.

winesapOS - Game with Linux anywhere, no installation required! - winesapOS/winesapOS

The main repository for the Linux and Mac OS Bedrock edition Minecraft launcher. - minecraft-linux/mcpelauncher-manifest

SteamOS session compositing window manager.

Install and manage GE-Proton, Luxtorpeda & more for Steam and Wine-GE & more for Lutris with this graphical user interface. - DavidoTek/ProtonUp-Qt

You might want to add MangoHud to your recipe in order to provide FPS and stuff monitoring overlay. Many gamers need such overlays as far as I know.

Steam Achievement Manager For Linux. Rewritten in C++. - PaulCombal/SamRewritten

An Anime Game launcher for Linux with telemetry disabling - an-anime-team/an-anime-game-launcher