SCP: Lockdown 2 (NE) updated to version 2.6.2
+ added (back) Simple Generators and its dependency ValkyrieLib mods
Type in the modpack name (SCP: Lockdown 2 (NE)) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select SCP: Lockdown 2 (NE) from the list on the left. The launcher will handle everything else!