Here you gain all perks from previous tiers and:
1) The right to request a Time-Lock. This is a super complex quest design with possible branching in range of tens. (For example Tournament of Destroyers Time-Lock) OR Have me fix your Xenoverse 2 script for you (up to 8000 lines)
2) Being able to directly dictate how a quest should go. Basically being 100% in control of the development process (This does not include deciding when I'll be working on it. That will still remain up to my decision. However while I am working on a T-L, I will focus solely on that for the majority of a working day.)
Basically this tier is a modding contract between you and me.
Disclaimer: If multiple people are within this tier and all of them have a request, I will work only on one until it is finished and only afterwards moving on to others. Also since these take months to create, you do not have to remain in this tier for longer than one month.