Rise to power
Deals with the protagonist's, a group's they work for, or some secondary character's (that the protagonist works with) ascension to power.
Alternate names: Rise to rulership, Rise to supremacy
The first video game about Rise to power was released on October 26, 2010.
If this is only a side effect of whatever you do, then this tag shouldn't be used. For example, it's a norm in RPGs that you become ever more powerful over the course of the game, thus that should not count unless it is specifically stated as the goal or such.