diff --git a/tests/run.lua b/tests/run.lua
index cbef589..7aec43c 100644
--- a/tests/run.lua
+++ b/tests/run.lua
@@ -7395,6 +7395,179 @@ function tests.gameEquippingOverABoundCursedWeaponFailsAndRevealsTheCurse()
   ok(game.player.weapon == before, "the bound weapon stays equipped")
   eq(Curses.isRevealed(before), true, "the failed swap reveals the curse")
   eq(#game.player.inventory, 1, "the replacement weapon stays in the pack, never spent")
+  ok(contains(game.log:last(), "will not come off"), "the log explains the weapon is stuck")
+end
+
+function tests.gameEquippingAFreshCurseHidesItUntilYouTryToTakeItOff()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  local cursedRing = Curses.afflict(Items.ring("ring of power", 1, 1), Curses.pool.ring[1])
+  game.player.inventory = { cursedRing }
+  ok(game:useItem(1), "equipping an empty slot with a cursed item still succeeds")
+  ok(game.player.ring == cursedRing, "the cursed ring is now equipped")
+  ok(not contains(game.log:last(), "cursed"), "the equip message never spoils an unrevealed curse")
+end
+
+function tests.gameRemoveCurseScrollLiftsEveryCurseCurrentlyWorn()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  game.player.ring = Curses.afflict(Items.ring("ring of power", 0, 0), Curses.pool.ring[1])
+  game.player.inventory = { Items.scroll("removecurse") }
+  ok(game:useItem(1), "reading the scroll succeeds")
+  eq(Curses.isCursed(game.player.ring), false, "the worn ring's curse is lifted")
+  ok(contains(game.log:last(), "lifts"), "the log reports the cleansing")
+end
+
+function tests.gameHungerTorchTickBleedsHpFromACursedRingEachTurn()
+  local game = Game.new(1)
+  game.player.ring = Curses.afflict(Items.ring("ring of power", 0, 0), Curses.pool.ring[1])
+  local before = game.player.hp
+  game:hungerTorchTick()
+  eq(game.player.hp, before - 1, "a cursed ring's affliction bleeds its fixed drain each turn")
+  ok(contains(game.log:last(), "saps"), "the drain is announced in the log")
+end
+
+function tests.shrinePrayFortuneBlessingAlsoLiftsAnyCurseCurrentlyWorn()
+  local player = shrinePlayer(50)
+  player.ring = Curses.afflict(Items.ring("ring of power", 0, 0), Curses.pool.ring[1])
+  local game = { player = player, rng = Rng.new(1) }
+  local shrine = { x = 1, y = 1, kind = Shrines.FORTUNE, uses = 0 }
+  local success, lines = Shrines.pray(game, shrine)
+  eq(success, true, "the prayer resolves")
+  eq(Curses.isCursed(player.ring), false, "fortune's blessing lifts the worn ring's curse too")
+  ok(contains(lines[2], "cleanses"), "a lifted curse counts toward the cleansing message")
+end
+
+function tests.renderPanelPrefixesCursedGearOnceRevealedButNotBefore()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  game.player.weapon = Curses.afflict(Items.weapon("dagger", 5), Curses.pool.weapon[1])
+  ok(not contains(Render.panel(game), "cursed"), "an unrevealed curse never shows in the status panel")
+  Curses.reveal(game.player.weapon)
+  ok(contains(Render.panel(game), "cursed dagger"), "a revealed curse is flagged in the status panel")
+end
+
+function tests.builderOccasionallyPlacesACursedPieceOfGear()
+  local found
+  for seed = 1, 80 do
+    local level = Builder.build(2, Rng.new(seed), {})
+    for _, ground in ipairs(level.floorItems) do
+      if ground.item.cursed then found = ground.item end
+    end
+    if found then break end
+  end
+  ok(found ~= nil, "a cursed piece of gear eventually turns up across a handful of seeds")
+  ok(found.cursePenalty ~= nil or found.curseDrain ~= nil, "a cursed drop always carries a concrete penalty")
+end
+
+function tests.builderNeverCursesAnItemThatAlreadyHasABeneficialAffix()
+  for seed = 1, 30 do
+    for depth = 1, 5 do
+      local level = Builder.build(depth, Rng.new(seed), {})
+      for _, ground in ipairs(level.floorItems) do
+        if ground.item.affix then
+          ok(not ground.item.cursed, "an item with a beneficial affix is never also cursed")
+        end
+      end
+    end
+  end
+end
+
+function tests.cursedFieldsSurviveSerialization()
+  local game = Game.new(3)
+  game.player.ring = Curses.afflict(Items.ring("ring of power", 1, 1), Curses.pool.ring[1])
+  Curses.reveal(game.player.ring)
+  local path = os.tmpname()
+  game:save(path)
+  local restored = Game.load(path)
+  os.remove(path)
+  eq(restored.player.ring.cursed, true, "a cursed ring's flag survives a save/load round trip")
+  eq(restored.player.ring.curseDrain, 1, "a cursed ring's drain survives a save/load round trip")
+  eq(restored.player.ring.curseRevealed, true, "a revealed curse stays revealed after reload")
+end
+
+function tests.momentumStacksReadsZeroForAFreshEntity()
+  eq(Momentum.stacks({}), 0, "an entity with no combo field reads as zero stacks")
+end
+
+function tests.momentumOnMeleeHitBuildsAndCapsAtItsMaxStacks()
+  local entity = {}
+  for i = 1, Momentum.MAX_STACKS do
+    Momentum.onMeleeHit(entity)
+    eq(Momentum.stacks(entity), i, "stack " .. i .. " builds one at a time")
+  end
+  Momentum.onMeleeHit(entity)
+  eq(Momentum.stacks(entity), Momentum.MAX_STACKS, "stacks never climb past the cap")
+end
+
+function tests.momentumOnDamagedSnapsTheStackBackToZero()
+  local entity = { combo = 3 }
+  Momentum.onDamaged(entity)
+  eq(Momentum.stacks(entity), 0, "taking a hit clears the whole stack outright")
+end
+
+function tests.momentumAttackBonusScalesLinearlyWithStacks()
+  local entity = {}
+  eq(Momentum.attackBonus(entity), 0, "no stacks means no bonus")
+  Momentum.onMeleeHit(entity)
+  Momentum.onMeleeHit(entity)
+  eq(Momentum.attackBonus(entity), 2 * Momentum.BONUS_PER_STACK, "the bonus scales with the current stack count")
+end
+
+function tests.entityEffectiveAttackFoldsInMomentumAlongsideStatusModifiers()
+  local entity = Entity.new({ x = 1, y = 1, glyph = "@", name = "you", kind = "player", hp = 20, attack = 6, defense = 2 })
+  eq(entity:effectiveAttack(), 6, "a fresh entity's effective attack is just its base")
+  Momentum.onMeleeHit(entity)
+  Momentum.onMeleeHit(entity)
+  eq(entity:effectiveAttack(), 8, "two momentum stacks add their flat bonus on top of base attack")
+end
+
+function tests.gamePlayerAttackBuildsMomentumAndItReadsLiveInEffectiveAttack()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  local orc = Monsters.create(Monsters.byKey.orc, 1, 4, 6, 1)
+  orc.hp, orc.maxHp = 100, 100
+  game.level.entities = { orc }
+  eq(game.player:effectiveAttack(), game.player.attack, "a fresh player carries no momentum bonus")
+  game:playerAttack(orc)
+  eq(game.player.combo, 1, "a landed melee hit builds one stack")
+  eq(game.player:effectiveAttack(), game.player.attack + 1,
+    "the very next read of effectiveAttack already reflects the new stack")
+end
+
+function tests.gameMonsterMeleeSnapsMomentumBackToZero()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  game.player.combo = 4
+  local orc = Monsters.create(Monsters.byKey.orc, 1, 2, 6, 1)
+  game:monsterMelee(orc)
+  eq(game.player.combo, 0, "getting hit by a monster's melee resets momentum to zero")
+end
+
+function tests.gameEvadedMonsterAttackNeverBreaksMomentum()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  game.player.skills = { evasion = true }
+  local orc = Monsters.create(Monsters.byKey.orc, 1, 2, 6, 1)
+  local sawEvasion = false
+  for seed = 1, 40 do
+    game.rng = Rng.new(seed)
+    game.player.combo = 3
+    game:monsterMelee(orc)
+    if game.player.combo == 3 then sawEvasion = true break end
+  end
+  ok(sawEvasion, "an evaded attack never reaches Combat.attack, so momentum survives it")
+end
+
+function tests.gameMimicAmbushAlsoBreaksMomentum()
+  local game = stagedGame(1, arena(21, 11), 5, 5)
+  game.player.combo = 2
+  game.level.floorItems = { { x = 5, y = 5, item = Mimics.floorItem(Rng.new(1)) } }
+  game:pickupHere()
+  eq(game.player.combo, 0, "a mimic's ambush hit also breaks momentum")
+end
+
+function tests.renderPanelShowsComboOnlyOnceItIsBuilt()
+  local game = stagedGame(1, arena(21, 11), 3, 6)
+  ok(not contains(Render.panel(game), "combo"), "a fresh player with no momentum shows no combo line")
+  game.player.combo = 3
+  ok(contains(Render.panel(game), "combo x3"), "a built-up combo is reported in the status panel")
+end
+
 end
 
 local order = {