diff --git a/mods/default/license.txt b/mods/default/license.txt
new file mode 100644
index 0000000..5ad819f
--- /dev/null
+++ b/mods/default/license.txt
@@ -0,0 +1,13 @@
+Many sounds, code and other stuff have been taken from other open source games:
+
+mods/default/sounds/player{join, leave, death}.ogg, healthgain.ogg: from OpenArena – GNU GPL 2. mods/default/sounds/player_%.ogg: from Xonotic – GNU GPL 3.
+
+mods/default/sounds/{lava, waterfall}.ogg: from Red Eclipse – CC BY-SA 3.0.
+
+mods/default/sounds/{hit, hit_death}.ogg: from Freesound – CC0.
+
+Some code has also been taken from Carbone:
+
+https://gitorious.org/calinou/carbone
+
+LGPL for the joining and leaving noises as far as I know.
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diff --git a/mods/mapgen/license.txt b/mods/mapgen/license.txt
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index 0000000..c437447
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+++ b/mods/mapgen/license.txt
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+mapgen_cobble.png is by Esteban. Licensed CC-BY-SA
+
+https://forum.minetest.net/viewtopic.php?f=4&t=10293
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