Mediocre

I played obsessively for three days, then realized theres no pay-off. I like the gee-wiz post-apocalyptic aesthetics. And putting the Fallout style into a tower-defense type game is a good idea, but the mechanics fall short.
My main grip is the UI. There are multiple menus you access through the bright green icons buttons. Each menu is different, making them difficult to navigate. There is one, when you double click a room them click the rooms character menu, then click the character, that I never really knew what it did. And lots of the menus are accessed in that manner: click here, then here, then here.
There was also a lot of information that you just cant access. For example, if you want to see a list of the weapons that are equipped, you cant. You just have to click through all your characters.
Final problem falls between design and programming. The only exciting part of the game is when theres a raid. Its mostly tower-defense in that you need to have characters well-equipped to handle the raiders. However, you can do a little slight of hand and pass weapons around the shelter, and heal characters while in battle. But the characters are constantly jitter-bugging around the rooms, and the touch actions are sluggish. Also, the health bar is displayed above the characters, but if theyre bunched together you cant figure out which one to try to tap.
I gave this a 3 star rating, but after writing this Id only give it 2, and thats for using the fun Fallout style. Overall this game is over built and under designed.
Dont Buy. ;)

Geams about Fallout Shelter