Each game presents players with choices that serve to drive the narrative. (edutopia.org)
In addition to the basic gameplay of clearing out levels of enemies, the game presents players with a variety of challenges, such as tracking down specific items or defeating certain unique enemies. (adweek.com)
This is done by presenting the player with a series of small achievable challenges or steps (quests) along the way to reaching an overall goal. (elearningindustry.com)