Anchoring Bias

The tendency to rely disproportionately on the first piece of information encountered when making decisions.

In games, this means

Showing a currency bundle at £49.99 before presenting a £9.99 option makes the smaller amount feel like a bargain. Displaying the 'original' crossed-out price anchors perception of value. In skill systems, showing max level first anchors players to perceive their current level as low and motivates progression.