Roguelikes are games similar to Rogue (1984). Rogue is legendary text-based dungeon crawler. This game spawned a lot of roguelikes and other ASCII-based games.

ByteZ ASCII maps basic legend:
[ @ ] - Hero
[ # ] - Stone/Wall
[ > ] - Go To Next Level
[ . ] - Ground
[ & ] - Tree
[ ~ ] - Water/Swamps
[ Y ] - Cactus
[ ^ ] - Mountain
[ ! ] - Potion
[ % ] - Food
[ $ ] - Money
[ / ] - Weapon
[ ? ] - Anomaly/Special
[ 0..9 ] - Entities
[ a..z ] - Entities
[ A..Z ] - Entities

ByteZ is hardcore text-based roguelike/dungeon crawler.

Features:
+ Difficulty: Easy, Default and Nightmare.
+ Races: Blazing Red, Terminal Green and Sky Blue.
+ Classes: Blacksmith, Computer Maniac, Priest, Paramedic, Herbalist, Houselady.
+ Items: Potions, food and weapons.
+ Entities: Peaceful, aggressive and diabolical.
+ Combat: Turn-based combat with RPG styled dice.
+ Lands: Ashed Lands, Cybernetic, Desert, Dungeon, Forest and Iced Lands.
+ Shadows (Bresenham's Algorithm) in Easy difficulty mode.
+ Fog of War in Default and Nightmare difficulty mode.

Important facts:
+ Diabolical entities can only be defeated with Blue Energy.
+ Defeated entities can be connected into a zombie network, but this is punished by the permanent death mode of the character.
+ Entities connected in a zombie network can be miners of the ByteZ Dollars in-game currency.

Ready to get into procedurally generated world to crawl these lands filled with anomalies until you find the artifact and make notes about anomalies you meet. Good luck!

I hope that I also fulfilled your dream about text-based roguelike for Android phone!

Version history:
3.1 - Initial release