PID gains

Proportional (Kp): 0.180 Integral (Ki): 0.035 Derivative (Kd): 0.06

Target & player

Target performance: 60%

Skill drift (improve/tire)

Rounds per second: 2.0

Run

Live stats

Encounter0

Difficulty—

Performance rate—

Error (perf − target)—

Hidden skill—

Loop status—

Each round the sim plays a batch of encounters at the current difficulty against a hidden player-skill value, measures the win rate, and feeds the error against your target into output = Kp·e + Ki·∫e + Kd·(de/dt). That output is added directly to next round's difficulty — a genuine control loop, not a scripted ramp.