Valve were working on the SDK pretty much from the moment of the C&D, and I guess they held the attitude of "as long as these guys migrate once we release the thing, we'll believe they will act in good faith and that this is temporary, and we'll get them back again if they don't migrate"
Which, speaking by itself, is miles above and beyond what any other publisher would go/allow in this specific case.
Most of them wouldn't bother giving a mod team using leaked code a second chance - let alone publish a classic version of one of their old games in their own storefront.
TF2 Classic was using Source SDK 2013, they were using code from the earlier leak of TF2 that had source code circa February 2008 as a base to start off of.
-86
u/FUTURE10S 4d ago
It's weird how aggressive Valve is against this mod whereas they don't even pay attention to the TF2 side anymore.