Question: what are the best offline games for android?
Answer: Runner: Alto's Odyssey.
Chess: Really Bad Chess.
Puzzle: Mazes & More.
Platform: Once Upon A Tower.
Arcade: Jungle Marble Blast. Advertisement. ... 
Brainy: Quizoid. ... 
Action: Tank Hero: Laser Wars. ... 
Puzzle: Sudoku (by Fassor)