diff --git a/tools/autoplay-batch.sh b/tools/autoplay-batch.sh
index eb45ee2c..93c9e0c2 100755
--- a/tools/autoplay-batch.sh
+++ b/tools/autoplay-batch.sh
@@ -187,6 +187,38 @@ _run_local() {
         _kill_stale_procs
     fi
 
+    # Per-seed clan rotation for `AI_PIN_PERSONALITY_P{0..4}`:
+    # without this, slot 0 always holds the same clan (whatever the caller
+    # set globally), and because `auto_play.gd` impersonates slot 0 with
+    # extra strategic helpers (rush-buy gold, attack-phase commit, formation
+    # orders) that one clan wins every game. Rotating which clan holds slot
+    # 0 across seeds spreads the autoplay-shaped opportunity. Reads
+    # `AI_PIN_PERSONALITY_P0..4` from caller env to learn the canonical
+    # ordering, then rotates by `(seed-1) % 5` so position-shift is
+    # deterministic per seed. Caller can suppress by setting
+    # `AI_PIN_ROTATION=off`.
+    local PIN_P0_ENV="${AI_PIN_PERSONALITY_P0:-}"
+    local PIN_P1_ENV="${AI_PIN_PERSONALITY_P1:-}"
+    local PIN_P2_ENV="${AI_PIN_PERSONALITY_P2:-}"
+    local PIN_P3_ENV="${AI_PIN_PERSONALITY_P3:-}"
+    local PIN_P4_ENV="${AI_PIN_PERSONALITY_P4:-}"
+    local PINS=("$PIN_P0_ENV" "$PIN_P1_ENV" "$PIN_P2_ENV" "$PIN_P3_ENV" "$PIN_P4_ENV")
+    local PIN_SEED_P0="$PIN_P0_ENV"
+    local PIN_SEED_P1="$PIN_P1_ENV"
+    local PIN_SEED_P2="$PIN_P2_ENV"
+    local PIN_SEED_P3="$PIN_P3_ENV"
+    local PIN_SEED_P4="$PIN_P4_ENV"
+    if [ "${AI_PIN_ROTATION:-on}" != "off" ] && [ -n "$PIN_P0_ENV" ] \
+        && [ -n "$PIN_P1_ENV" ] && [ -n "$PIN_P2_ENV" ] \
+        && [ -n "$PIN_P3_ENV" ] && [ -n "$PIN_P4_ENV" ]; then
+        local shift=$(( (seed - 1) % 5 ))
+        PIN_SEED_P0="${PINS[$(( (0 + shift) % 5 ))]}"
+        PIN_SEED_P1="${PINS[$(( (1 + shift) % 5 ))]}"
+        PIN_SEED_P2="${PINS[$(( (2 + shift) % 5 ))]}"
+        PIN_SEED_P3="${PINS[$(( (3 + shift) % 5 ))]}"
+        PIN_SEED_P4="${PINS[$(( (4 + shift) % 5 ))]}"
+    fi
+
     local WESTON_PID=""
     local FLATPAK_ENVS=(
         "--env=AUTO_PLAY=true"
@@ -198,6 +230,11 @@ _run_local() {
         "--env=AI_DIFFICULTY_P0=${AI_DIFFICULTY_P0:-}"
         "--env=AI_DIFFICULTY_P1=${AI_DIFFICULTY_P1:-}"
         "--env=AI_PIN_PERSONALITY=${AI_PIN_PERSONALITY:-}"
+        "--env=AI_PIN_PERSONALITY_P0=${PIN_SEED_P0}"
+        "--env=AI_PIN_PERSONALITY_P1=${PIN_SEED_P1}"
+        "--env=AI_PIN_PERSONALITY_P2=${PIN_SEED_P2}"
+        "--env=AI_PIN_PERSONALITY_P3=${PIN_SEED_P3}"
+        "--env=AI_PIN_PERSONALITY_P4=${PIN_SEED_P4}"
         "--env=MAP_SIZE=${MAP_SIZE:-}"
         "--env=NUM_PLAYERS=${NUM_PLAYERS:-}"
         "--env=AI_USE_MCTS=${AI_USE_MCTS:-}"