I was just thinking the same.. =\ I'd love to see quests for every game, they add so much more interest to it and they make the player want to play that game way more.. I really hope that all the games on this website keep on getting upgraded and badged.. there are so few badges here =(
I think the people running AG would love to have quests on all the games here, but in the end, it's up to the devs of the game itself to implement these quests in their games.
We just need to be patient, or contact some active devs if they are willing to put in some quests for their games.
iirc, I think games made with unity, which the latest games mostly are, it's a bit harder to have quests as well because of coding issues...
I just saw matt who makes the epic battle fantasy series post an update on how he's almost ready to publish his latest game for AG, perhaps it will have some quests, it's a great game that improves once again on his older games and is a must buy on steam for all those who love turn based rpg