Ah, I see. So that means that TAF files also contain .NET-specific code, I take it? Otherwise I wouldn’t think that the fact that the runner itself is written in .NET would matter much in this regard. (As you can see I don’t know anything about Adrift!)
I gather that the runner contains some game logic, according to Pros and cons of ADRIFT 5 - #2 by ralphmerridew, although that doesn’t seem .NET-specific in itself.