After playing for a while and having quite a few failure vaults, I finally managed to keep a vault that managed to survive.

But then at around 80 dwellers I realised, after 100 dwellers the is nothing else to unlock, and after 200 dwellers, there is not much left to do. Therefore making the game, at that point, boring.

Of course you can always start a new vault and do it all again, but I personally rather to keep the one AWESOME vault that does really well, and I can keep working on.

Then it hit me, Research. A new room that unlock at "xxxx" amount of dwellers that you could send Intelligent dwellers to to research more ways to upgrade your vault.

They could be as small as automated fire sprinklers (I don't know what they are actually called) or to as big as a town outside your vault (just things that came to mind when writing this).

Please comment whether or not you think this would be a good addition to this already awesome game.

Also, please comment some suggestions for other upgrades that could be researched.

*some upgrades I thought of*

- automated turrets to help dealing with raiders and radroches

- Butler droids that increase the happiness of dwellers and can also help with disasters

- a way to peacefully get rid of other dwellers (original idea from http://www.gamesas.com/user/953710-simcutie/)

- automated fire sprinklers for dealing with fires

- town outside your vault for a way of trading and expanding