diff --git a/Makefile.am b/Makefile.am
index 84434fe9a..85fa72068 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -171,8 +171,6 @@ EXTRA_DIST = \
 	contrib/games/palf2.efg \
 	contrib/games/palf3.efg \
 	contrib/games/palf.efg \
-	contrib/games/poker2.efg \
-	contrib/games/poker.efg \
 	contrib/games/pvw2.efg \
 	contrib/games/pvw.efg \
 	contrib/games/sh3.efg \
@@ -188,6 +186,7 @@ EXTRA_DIST = \
 	contrib/games/work1.efg \
 	contrib/games/work2.efg \
 	contrib/games/work3.efg \
+	contrib/games/2smp.efg \
 	contrib/games/2x2a.nfg \
 	contrib/games/2x2const.nfg \
 	contrib/games/2x2.nfg \
@@ -222,7 +221,6 @@ EXTRA_DIST = \
 	contrib/games/perfect1.nfg \
 	contrib/games/perfect2.nfg \
 	contrib/games/perfect3.nfg \
-	contrib/games/poker.nfg \
 	contrib/games/sh3.nfg \
 	contrib/games/stengel.nfg \
 	contrib/games/sww1.nfg \
@@ -235,11 +233,15 @@ EXTRA_DIST = \
 	contrib/games/yamamoto.nfg \
 	contrib/games/zero.nfg \
 	src/README.rst \
-	catalog/2smp.efg \
+	catalog/bagwell1995.efg \
+	catalog/myerson1991/fig2_1.efg \
 	catalog/myerson1991/fig4_2.efg \
+	catalog/reiley2008/fig1.efg \
 	catalog/selten1975/fig1.efg \
 	catalog/selten1975/fig2.efg \
-	catalog/selten1975/fig3.efg
+	catalog/selten1975/fig3.efg \
+	catalog/watson2013/exercise29_6.efg \
+	catalog/watson2013/fig29_1.efg
 
 core_SOURCES = \
     src/core/core.h \
diff --git a/catalog/reiley2008/fig1.efg b/catalog/reiley2008/fig1.efg
index cb3e698a6..9083ff0f6 100644
--- a/catalog/reiley2008/fig1.efg
+++ b/catalog/reiley2008/fig1.efg
@@ -16,7 +16,7 @@ p "" 1 1 "" { "Bet" "Fold" } 0
 p "" 2 1 "" { "Call" "Fold" } 0
 t "" 1 "Professor Wins Big" { 2, -2 }
 t "" 2 "Professor Wins" { 1, -1 }
-t "" 4 "Professor Loses" { 1, -1 }
+t "" 4 "Professor Loses" { -1, 1 }
 p "" 1 2 "" { "Bet" "Fold" } 0
 p "" 2 1 "" { "Call" "Fold" } 0
 t "" 3 "Professor Loses Big" { -2, 2 }
diff --git a/doc/tutorials/04_creating_images.ipynb b/doc/tutorials/04_creating_images.ipynb
index bd6e7e106..ec15e8f76 100644
--- a/doc/tutorials/04_creating_images.ipynb
+++ b/doc/tutorials/04_creating_images.ipynb
@@ -38,7 +38,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "g = gbt.catalog.load(\"2smp\")"
+    "g = gbt.read_efg(\"../../contrib/games/2smp.efg\")"
    ]
   },
   {
diff --git a/tests/test_catalog.py b/tests/test_catalog.py
index be4903a20..c010c2a51 100644
--- a/tests/test_catalog.py
+++ b/tests/test_catalog.py
@@ -4,31 +4,46 @@
 import pygambit as gbt
 
 
-def test_catalog_load_efg():
-    """Test loading an extensive form game"""
-    g = gbt.catalog.load("selten1975/fig1")
-    assert isinstance(g, gbt.Game)
-    assert g.title == "Selten's horse (Selten IJGT 1975, Figure 1)"
-
-
-# TODO: Reintroduce this test once we have a .nfg game in the catalog
-# def test_catalog_load_nfg():
-#     """Test loading a normal form game"""
-#     g = gbt.catalog.load("pd")
-#     assert isinstance(g, gbt.Game)
-#     assert g.title == "Two person Prisoner's Dilemma game"
+@pytest.fixture
+def game_slugs():
+    """Fixture providing a set of all game slugs in the catalog."""
+    game_slugs = set()
+    for resource_path in gbt.catalog._CATALOG_RESOURCE.rglob("*"):
+        if resource_path.is_file() and resource_path.suffix in gbt.catalog.READERS:
+            rel_path = resource_path.relative_to(gbt.catalog._CATALOG_RESOURCE)
+            slug = rel_path.with_suffix("").as_posix()
+            game_slugs.add(slug)
+    return game_slugs
+
+
+def test_catalog_load_all_game_slugs(game_slugs):
+    """Test loading all valid game files in the catalog."""
+    errors = []
+    for slug in game_slugs:
+        try:
+            g = gbt.catalog.load(slug)
+            assert isinstance(g, gbt.Game), f"Expected gbt.Game, got {type(g)}"
+        except Exception as e:
+            errors.append(f"Slug '{slug}' failed with {type(e).__name__}: {e}")
+
+    if errors:
+        pytest.fail(f"Errors loading {len(errors)} game(s):\n" + "\n".join(errors))
 
 
 def test_catalog_load_invalid_slug():
-    """Test loading an invalid game slug"""
+    """Test loading an invalid game slug."""
     with pytest.raises(FileNotFoundError):
         gbt.catalog.load("invalid_slug")
 
 
-def test_catalog_games():
-    """Test games() function returns df of game slugs and titles"""
+def test_catalog_games(game_slugs):
+    """Test games() function returns df of game slugs and titles."""
     all_games = gbt.catalog.games()
     assert isinstance(all_games, pd.DataFrame)
-    assert len(all_games) > 0
-    assert "myerson1991/fig4_2" in list(all_games.Game)
-    assert "Myerson (1991) Figure 4.2" in list(all_games.Title)
+
+    # The games() function should return exactly the set of slugs found above
+    assert set(all_games["Game"]) == game_slugs
+
+    # Test that standard columns are present
+    assert "Game" in all_games.columns
+    assert "Title" in all_games.columns