It looks simple enough graphically that you don't really need all the bells and whistles of engines like Unity. AGK2 would be more than capable of handling such task. Plus AGK2 has one of the most generous licensing fee around. For a commercial game engine, that is. Basically, you pay once and that's it. And the fee is not that expensive compared to some products that can't even do 3D.
And don't forget that AGK2 is currently in constant development. Even if TGC decided to stop at the end of current
road map and move anything further to a new AppGameKit, you would still get more than you paid for. Not saying that I would endorse the devs to conclude AGK2 and make AGK3, but fact is fact.
And the devs certainly would not abandon the community like what happened with the Blitz Forum, if this forum is any indicator of how they operate.
To the devs: After that glowing recommendation, I expect the season pass for all your current and future products would arrive in my mailbox soon.