Recs.
Updated
Boom Beach is a cross-platform free to play base building game that focuses on strategy.
The gameplay consists of building up ones offensive and defensive capabilities through incremental upgrades. There is a large focus on battling in the game where players used their troops to attack other peoples bases in order to collect more of the resources that are used to upgrade ones base and units.
Specs
Pros
Pro Living world that takes place even when the player is not signed in
Even when a player is not logged into the game there is a chance that someone may attack and destroy your base. Things are happening in the world of the game even when not using it, which is not only an incentive to check into the game often and build up ones defenses but also a reason to check in to see if anything has happened. It makes for an addictive cycle of gameplay.
Pro Easy to learn with adequate tutorial
While a casual game some people may find the mechanics confusing. Luckily the game provides a pretty good tutorial that explains how to play by having the player perform the functions needed in the game before really starting to play, all while being explained by the game before the actions takes place.
Cons
Con Social functions are non-existent
There is no in-game chat for the game nor is there really any meaningful way to interact with other player other than attacking their bases. So while the game thrives on being a large multiplayer game there is just about zero interaction one can have with the other players.