I have an android phone, and Fallout Shelter recently came out on android. Naturally, I downloaded it, and I must say that I'm pretty big right now. Plus, I really enjoy this Sims style mini game, because they implemented a lot of Fallout 3 elements in it.

Fallout 3 elements:

I'd like to know what you guys think about the game and share some tips

I like how its not a pay to win type game, and I like the graphics alot, theyre very charming like scribblenauts! as for tips, Id say always make sure you have someone out in the wasteland gathering gear and weapons, and avoid making huge merged rooms until you have enough qualified dwellers to occupy it (I think bigger rooms have bigger fires and more radroaches). For combat, I keep all the weapons in storage until I need them, so I can quickly hand them out and im not trying to track down who has the weapons in order to reassign them. finally, if youre trying to keep your happiness up, just make sure you keep your resources well stocked, assign dwellers to rooms best suited for thier SPECIAL stats, and if theyre still not improving, have them get it on with another dweller, that usually makes thier happiness 100% for me!

I've never thought about keeping the weapons, but I guess I have enough weapons for everyone. It would be a great tip for a starter though.
I always send my explorer when I go to sleep, and recall him when I'm awake

Yeah if you have enough weapons, then its kinda pointless to hold onto them:). I have 30 dwellers right now and im at 91% happiness, Im just dreading having a deathclaw attack...

If you are in need of more vault dwellers, just put a male and female in the quarters and let nature take its course. The higher the charisma the faster the initial results. If they arent doing anything check and make sure they arent family.. (Their comments will show they are if that is the case..)

If you do add more people this way, make sure your food output can handle it though... And once the kids are around you can wash, rinse and repeat for even more dwellers.. Just keep in mind that for a period of time, you won't have the extra hands to help with things, just the extra mouths to feed...

Keep populating your vault keep popping out those babies, and don't be scared of sending vault dwellers out into the waste for weapons, caps, and armor. Just keep taps on the time and equip dwellers you send out with stimpaks and radaway, mainly stimpaks though and a decent weapon.

great tips. will try and fallow.

I'd train your dwellers in luck as much as you can I have 3x the training space for luck than any other training rooms because it makes the caps roll in

As soon as you can get storage space for 25 stimpacks and radaways so you can send out explorers for ages, also send them out with your best weapons they will bring back better gear