on rails
adj.β Β«One of the shorthand ways of criticizing a modern game is to say that part or all of the game is βon rails,β meaning that the player doesnβt have control over his or her characterβs path through the level.Β» βββZelda’ Vs. Mode Ends β N’Gai Goes βManhunt,’ Stephen Changes Tune” by N’Gai Croal MTV Multiplayer Nov. 1, 2007. (source: Double-Tongued Dictionary)