1.7.10 is a release file of the Minecraft mod Lambda Craft, made for Minecraft 1.7.10. It was published on March 23, 2022 and is 14.2 MB in size. For the full description, screenshots and every other version, visit the Lambda Craft mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.