Hit chance percentages
Attacks succeed or fail on a visible probability roll — the interface says 85%, and the game rolls against it. Displaying the odds turns each attack into an informed gamble and makes positioning, flanking, and ability choices legible: everything that modifies the number teaches the tactical system. Designers use visible percentages to convert combat into risk management, which is the core fantasy of tactics games. The infamous cost: humans are terrible at probability, and a missed 95% shot feels like a lie even though it is one in twenty. Many games quietly cheat toward player intuition — fudged rolls after miss streaks, or Fire Emblem's two-roll averaging that makes high percentages behave better than displayed. Key decisions: whether to fudge (and whether to disclose it), damage variance layered on top of hit variance, and guaranteed-hit options as pressure valves. Pitfall: pure statistical honesty reads as unfairness. Miss chance and dodge/evasion chance are the same math seen from the defender's side — ARPGs like Path of Exile and Diablo II turn avoidance into a buildable stat, with the same frustration risks whenever players can't see or influence the roll.
- Dev effort: Small
- Timing: Real-time or turn-based
- Common in: tactics, arpg