SpeedrunPack is a Minecraft speedrunning modpack containing mods verifiable on speedrun.com for modern game versions. SpeedrunIGT provides a highly customizable timer with category support, WorldPreview lets you inspect worlds while they generate, and Atum automatically creates a new world when you leave one, with a keybind for instant resets.
SeedQueue generates multiple worlds in one instance, with setup guidance for Minecraft 1.16.1 and 1.15.2. MCSR Fairplay adds verification and anti-cheat functionality, while performance mods boost FPS and speed up world generation. Java 17 or newer is required. This is an unofficial source; check mc.sr/mods for the current official list of legal mods.