Another ascii game.. a cross between dungeon master, simcity and pharaon... with a really impresive deep gameplay..
I really love this game

a lot of ascii dwarves (mostly) at your command
http://www.bay12games.com/To enjoy this game really need to read the manual a couple of times and have the wiki at hand to find how to do some things...
Feed them, bed them, clothe them, armour them, drown them, bury them .. and love them..
Also there is an adventurer mode (roguelike) too
Warning this game really wastes your time :)and needs a big iron despise no graphics.
(Windows/Linux under wine)
A good starting plan... put one miner to dig a large corridor (1 tile wide but leff room to made it 2 or 3 wide tiles later) to find the river, another one to dig a nice 6x6 room to get a carpenter (to get beds), mason workshop (to get doors) and fishery (to clean those fishes you should be fishing with all the other iddle dwarves) and another 6x6 later to store things (food first, later furniture) and install the beds in a temp sleeping quarters.
Once you get to the underground river plan for a riverside underground farm them...
Better yet go to the game wiki and read the "how to survive your 1st winter " guide