diff --git a/html-src/rules/pyramidthirteen.html b/html-src/rules/pyramidthirteen.html
new file mode 100644
index 00000000..b9f20751
--- /dev/null
+++ b/html-src/rules/pyramidthirteen.html
@@ -0,0 +1,22 @@
+<h1>Pyramid Thirteen</h1>
+<p>
+Pairing game type. 1 deck. No redeal.
+
+<h3>Object</h3>
+<p>
+Move all cards to the single foundation.
+
+<h3>Quick Description</h3>
+<p>
+Like <a href="pyramid.html">Pyramid</a>, but all but the
+front row of the pyramid are dealt face-down, and no redeals
+are allowed.
+
+<h3>Notes</h3>
+<p>
+This difficult variant of Pyramid is based on the Gnome AisleRiot
+rules.  It is called "Thirteen" there, but renamed Pyramid Thirteen
+here to avoid confusion with the game
+<a href="thirteens.html">Thirteens</a>.
+<p>
+<i>Quickplay</i> is disabled for this game.
diff --git a/pysollib/gamedb.py b/pysollib/gamedb.py
index 33d93cf4..b46a08fc 100644
--- a/pysollib/gamedb.py
+++ b/pysollib/gamedb.py
@@ -367,12 +367,12 @@ class GI:
         #       Hamilton, Labyrinth, Treize, Wall
         ("Gnome AisleRiot", (
             1, 2, 8, 9, 11, 12, 13, 19, 24, 27, 29, 31, 33, 34, 35, 36,
-            38, 40, 41, 42, 43, 45, 48, 58, 65, 67, 89, 91, 92, 93, 94,
-            95, 96, 97, 100, 104, 105, 111, 112, 113, 130, 135, 139, 144,
-            146, 147, 148, 200, 201, 206, 224, 225, 229, 230, 233, 257,
-            258, 277, 280, 281, 282, 283, 284, 334, 384, 479, 495, 551,
-            552, 553, 572, 593, 674, 700, 715, 716, 737, 772, 810, 819,
-            824, 829, 859, 874, 906, 934, 22231,
+            38, 40, 41, 42, 43, 44, 45, 48, 58, 65, 67, 89, 91, 92, 93,
+            94, 95, 96, 97, 100, 104, 105, 111, 112, 113, 130, 135, 139,
+            144, 146, 147, 148, 200, 201, 206, 224, 225, 229, 230, 233,
+            257, 258, 277, 280, 281, 282, 283, 284, 334, 384, 479, 495,
+            551, 552, 553, 572, 593, 674, 700, 715, 716, 737, 772, 810,
+            819, 824, 829, 859, 874, 906, 934, 22231,
         )),
 
         # Hoyle Card Games
@@ -594,7 +594,8 @@ class GI:
          tuple(range(19000, 19012)) + tuple(range(22303, 22311)) +
          tuple(range(22353, 22361))),
         ('fc-3.1', tuple(range(961, 971))),
-        ('dev', tuple(range(971, 977)) + tuple(range(18005, 18007)) + (526,)),
+        ('dev', tuple(range(971, 977)) + tuple(range(18005, 18007)) +
+         (44, 526,)),
     )
 
     # deprecated - the correct way is to or a GI.GT_XXX flag
diff --git a/pysollib/games/pyramid.py b/pysollib/games/pyramid.py
index 6c058fd7..9de28618 100644
--- a/pysollib/games/pyramid.py
+++ b/pysollib/games/pyramid.py
@@ -383,51 +383,18 @@ class PyramidDozen(Giza):
 
 
 # ************************************************************************
-# * Thirteen
-# * FIXME: UNFINISHED
-# * (this doesn't work yet as 2 cards of the Waste should be playable)
+# * Pyramid Thirteen
 # ************************************************************************
 
+# Previous comments suggest there would need to be two waste piles.  This
+# is not true.  Based on AisleRiot's rules, the two waste cards can only
+# be played with each other, which is the same as how PySol's traditional
+# version works.  So the remaining AisleRiot differences are captured
+# in "Pyramid Thirteen", renamed from "Thirteen" to avoid confusion with
+# "Thirteens"
+
 class Thirteen(Pyramid):
-
-    #
-    # game layout
-    #
-
-    def createGame(self):
-        # create layout
-        layout, s = Layout(self), self.s
-
-        # set window
-        self.setSize(7*layout.XS+layout.XM, 5*layout.YS+layout.YM)
-
-        # create stacks
-        for i in range(7):
-            x = layout.XM + (6-i) * layout.XS // 2
-            y = layout.YM + layout.YS + i * layout.YS // 2
-            for j in range(i+1):
-                s.rows.append(Pyramid_RowStack(x, y, self))
-                x = x + layout.XS
-        x, y = layout.XM, layout.YM
-        s.talon = WasteTalonStack(x, y, self, max_rounds=1)
-        layout.createText(s.talon, "s")
-        x = x + layout.XS
-        s.waste = Pyramid_Waste(x, y, self, max_accept=1)
-        layout.createText(s.waste, "s")
-        s.waste.CARD_XOFFSET = 14
-        x, y = self.width - layout.XS, layout.YM
-        s.foundations.append(Pyramid_Foundation(x, y, self,
-                             suit=ANY_SUIT, dir=0, base_rank=ANY_RANK,
-                             max_move=0, max_cards=52))
-
-        # define stack-groups
-        self.sg.talonstacks = [s.talon] + [s.waste]
-        self.sg.openstacks = s.rows + self.sg.talonstacks
-        self.sg.dropstacks = s.rows + self.sg.talonstacks
-
-    #
-    # game overrides
-    #
+    Talon_Class = StackWrapper(Pyramid_Talon, max_rounds=1, max_accept=1)
 
     def startGame(self):
         self.startDealSample()
@@ -1888,8 +1855,8 @@ registerGame(GameInfo(193, RelaxedPyramid, "Relaxed Pyramid",
                       GI.GT_PAIRING_TYPE | GI.GT_RELAXED, 1, 2,
                       GI.SL_MOSTLY_LUCK,
                       altnames=("Pyramid's Stones", "Pyramid Clear")))
-# registerGame(GameInfo(44, Thirteen, "Thirteen",
-#                       GI.GT_PAIRING_TYPE, 1, 0))
+registerGame(GameInfo(44, Thirteen, "Pyramid Thirteen",
+                      GI.GT_PAIRING_TYPE, 1, 0, GI.SL_MOSTLY_LUCK))
 registerGame(GameInfo(592, Giza, "Giza",
                       GI.GT_PAIRING_TYPE | GI.GT_OPEN, 1, 0, GI.SL_BALANCED))
 registerGame(GameInfo(593, Thirteens, "Thirteens",