I stumbled across this game in a post over on BGG. I'd been looking for a Coral Sea/Guadalcanal air/sea based game and this one looked interesting enough for $6 so I grabbed it. It's pretty good! Very bare bones (really wish there were some sound effects) and some of the writing is a bit off (I don't think English is the dev's native language) but there's a lot of detail in there. I've only done the Midway and Bismark Sea scenarios so far (each takes about an hour or so to play) and I find it quite engaging. The game forces you to go through all the tutorials before it'll let you start a scenario but it's probably worth it. I wish you could play the Japanese in single player but they're only available as playable in 2p games. There are in-app purchases to add extra scenarios as well as unlock features such as dynamic weather, non-historical setups, etc. I'll probably end up getting those as well.