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-rw-r--r--LICENSE2
1 files changed, 2 insertions, 0 deletions
diff --git a/LICENSE b/LICENSE
index c5d170d..6df20dd 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,8 @@
Copyright (c) 2022-2024 Mitya Selivanov
Copyright (c) 2022 Yonggang Luo
Copyright (c) 2016 Christian C. Sachs
+Copyright (c) 2013-2014 RAD Game Tools and Valve Software
+Copyright (c) 2010-2014 Rich Geldreich and Tenacious Software LLC
Copyright (c) 2012 yohhoy
Permission is hereby granted, free of charge, to any person obtaining a copy