diff --git a/themes/slate-es-de/MISSING.md b/themes/slate-es-de/MISSING.md
index ecf5ab817..cb60950db 100644
--- a/themes/slate-es-de/MISSING.md
+++ b/themes/slate-es-de/MISSING.md
@@ -92,7 +92,6 @@
* solarus: Solarus game engine - consolegame.svg
* spectravideo: Spectravideo - consolegame.svg, controller.svg
* steam: Steam game distribution service - consolegame.svg, controller.svg
-* stratagus: Stratagus game engine - consolegame.svg
* stv: Sega Titan Video Game System - consolegame.svg, controller.svg
* sufami: Bandai SuFami Turbo - consolegame.svg
* supervision: Watara Supervision - consolegame.svg
diff --git a/themes/slate-es-de/stratagus/colors.xml b/themes/slate-es-de/stratagus/colors.xml
deleted file mode 100644
index 3e268d2a7..000000000
--- a/themes/slate-es-de/stratagus/colors.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-
-
-
- A40000
-
-
- DB4C4C
-
-
- F57900
-
-
- 26353C
-
-
-
\ No newline at end of file
diff --git a/themes/slate-es-de/stratagus/images/logo.svg b/themes/slate-es-de/stratagus/images/logo.svg
deleted file mode 100644
index 261c32d0b..000000000
--- a/themes/slate-es-de/stratagus/images/logo.svg
+++ /dev/null
@@ -1,287 +0,0 @@
-
-
-
-
\ No newline at end of file
diff --git a/themes/slate-es-de/stratagus/systeminfo.xml b/themes/slate-es-de/stratagus/systeminfo.xml
deleted file mode 100644
index 1e7dcaf64..000000000
--- a/themes/slate-es-de/stratagus/systeminfo.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-
-
-
- Stratagus is an open-source game engine used to build real-time
-
-
- strategy games. The engine is written in C++ and uses the Lua
-
-
- language for implementing actual game logic. Among other
-
-
- features it supports playing over the Internet or via LAN.
-
-
-
\ No newline at end of file