diff --git a/AUTHORS b/AUTHORS
index c9194322f58..ab7fa707176 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -316,6 +316,7 @@ ScummVM Team
     MM (Xeen):
        Paul Gilbert
        Benoit Pierre
+       TheDrakeRaider                 - (M&M1 Gfx Mod)
        David Goldsmith                - (Xeen analysis)
        Matt Taylor                    - (Xeen analysis)
 
@@ -567,6 +568,9 @@ ScummVM Team
     WAGE:
        Eugene Sandulenko
 
+    Watchmaker:
+       Einar Johan Troan Somaen;
+
     Wintermute:
        Gunnar Birke                   - Wintermute 3D
        Einar Johan T. Somaaen
@@ -666,6 +670,9 @@ ScummVM Team
     Raspberry Pi:
        Manuel Alfayate
 
+    Libretro:
+       Giovanni Cascione
+
   Other subsystems
   ----------------
     Infrastructure:
diff --git a/doc/docportal/help/credits.rst b/doc/docportal/help/credits.rst
index dee1cb59aa7..67e542ce78b 100644
--- a/doc/docportal/help/credits.rst
+++ b/doc/docportal/help/credits.rst
@@ -792,6 +792,8 @@ MM (Xeen)
      -
    * - Benoit Pierre
      -
+   * - TheDrakeRaider
+     - (M&M1 Gfx Mod)
    * - David Goldsmith
      - (Xeen analysis)
    * - Matt Taylor
@@ -1427,6 +1429,15 @@ WAGE
    * - Eugene Sandulenko
      -
 
+Watchmaker
+^^^^^^^^^^
+
+.. list-table::
+   :widths: 35 65
+
+   * - Einar Johan Troan Somaen;
+     -
+
 Wintermute
 ^^^^^^^^^^
 
@@ -1699,6 +1710,15 @@ Raspberry Pi
    * - Manuel Alfayate
      -
 
+Libretro
+^^^^^^^^
+
+.. list-table::
+   :widths: 35 65
+
+   * - Giovanni Cascione
+     -
+
 Other subsystems
 ****************
 
diff --git a/gui/credits.h b/gui/credits.h
index ace668da410..95787d49a11 100644
--- a/gui/credits.h
+++ b/gui/credits.h
@@ -388,6 +388,8 @@ static const char *credits[] = {
 "C1""MM (Xeen)",
 "C0""Paul Gilbert",
 "C0""Benoit Pierre",
+"C0""TheDrakeRaider",
+"C2""(M&M1 Gfx Mod)",
 "C0""David Goldsmith",
 "C2""(Xeen analysis)",
 "C0""Matt Taylor",
@@ -701,6 +703,9 @@ static const char *credits[] = {
 "C1""WAGE",
 "C0""Eugene Sandulenko",
 "",
+"C1""Watchmaker",
+"C0""Einar Johan Troan Somaen;",
+"",
 "C1""Wintermute",
 "C0""Gunnar Birke",
 "C2""Wintermute 3D",
@@ -810,6 +815,9 @@ static const char *credits[] = {
 "C1""Raspberry Pi",
 "C0""Manuel Alfayate",
 "",
+"C1""Libretro",
+"C0""Giovanni Cascione",
+"",
 "",
 "C1""Other subsystems",
 "C1""Infrastructure",