**Abstract**

Gamification is considered the systematic anticipation and design of affective experiences. It is not erroneously reduced to the usage of game-typical elements in another context. The human experiences in focus are varying forms of virtual time travel. In a time travel exploratory game, players return virtually to the past for gaining insights and, possibly, finding artifacts bring back to the present time. This works well for environmental education studying, by way of illustration, the worldwide ocean warming over several decades. Time travel prevention games go even further. Players who visit the past get an opportunity to impact their fate. This works well in application areas such as crime prevention and industrial accident prevention. Dynamic time travel prevention games are a recently developed game type in which the past changes dynamically to support the player's chances of successfully completing the mission. The authors present original concepts and technologies and demonstrate running applications.

**Keywords:** gamification, time travel games, time travel exploratory games, environmental education, time travel prevention games, industrial accident prevention, dynamic time travel games
