[wolframhempel]

Actually this is something that's been bugging me forever - maybe someone knows the answer? What's the incentive to advertise one game but sell another? There's clearly a market for the "pull the pin" kind of game, they don't seem to be particularly hard to make and these ads are by large game publishers. Why not just make the game that people actually want?

[hakfoo]

The "pull the pin" game requires actual level design effort. You design 2000 puzzles and in 6 months the player's done with them all.

Taking Bejeweled and painting it a different colour can be done once and keep the user occupied indefinitely.

[atatatat]

Larger total market.