If you see the AGPL licenses on my free and open source work and you think “damn you, I can’t use this to enrich myself or my corporation without sharing back what I’ve built on top of what you’ve freely shared and thus contribute to cultivating a healthy commons where others might enjoy the same benefits from my work that I want to obtain from yours” (a) you really have long-winded thoughts and (b) well, you already see the flaw in your reasoning.
@Haijo7 If you’re the only author of your game engine or if you can get releases from all authors, you can still license it to a platform while also releasing it under A/GPL since you own the copyright.
@aral
I could imagine this being about the console's SDK's function signatures and stuff like that. Under NDA maybe you're not even allowed to "publish" those - by using them while also having code publicly available.
(I'm not saying this makes sense, I'm just saying that NDAs are sometimes far-reaching.)
@Haijo7