public void TechUnlockEvent(GameEvents.HostTargetAction<RDTech, RDTech.OperationResult> ev)
{
// [snip]
int num = ev.host.scienceCost * 10000;
Please fix it to actually use ScienceBuyMultiplier! Spent an hour wondering if I was going insane
EDIT: Sorry, missed the github link. Sent a PR.