diff --git a/metadata/categories.conf b/metadata/categories.conf
index 66ef8551..22755fd2 100644
--- a/metadata/categories.conf
+++ b/metadata/categories.conf
@@ -10,6 +10,7 @@ media-sound
 net-misc
 net-www
 sci-mathematics
+sci-physics
 sys-apps
 x11-apps
 x11-plugins
diff --git a/packages/sci-physics/bullet/bullet-2.83.5.exheres-0 b/packages/sci-physics/bullet/bullet-2.83.5.exheres-0
new file mode 100644
index 00000000..f29649ea
--- /dev/null
+++ b/packages/sci-physics/bullet/bullet-2.83.5.exheres-0
@@ -0,0 +1,32 @@
+# Copyright 2009, 2010 Ingmar Vanhassel
+# Copyright 2016 Julian Ospald
+# Distributed under the terms of the GNU General Public License v2
+
+require github [ user=bulletphysics pn=bullet3 tag=${PV} ] cmake [ api=2 ]
+
+SUMMARY="A professional free 3D game multiphysics library"
+HOMEPAGE+=" http://www.bulletphysics.com/"
+
+LICENCES="ZLIB"
+SLOT="0"
+PLATFORMS="~amd64 ~x86"
+MYOPTIONS=""
+
+DEPENDENCIES="
+    build+run:
+        x11-dri/mesa
+        x11-dri/freeglut
+"
+
+CMAKE_SRC_CONFIGURE_PARAMS=(
+    -DBUILD_DEMOS:BOOL=FALSE
+    -DBUILD_EXTRAS:BOOL=FALSE
+    -DBUILD_SHARED_LIBS:BOOL=TRUE
+    -DINSTALL_LIBS:BOOL=TRUE
+    -DINSTALL_EXTRA_LIBS=ON
+    -DBUILD_BULLET3=TRUE
+    -DBUILD_CPU_DEMOS=OFF
+    -DBUILD_OPENGL3_DEMOS=OFF
+    -DBUILD_BULLET2_DEMOS=OFF
+    -DUSE_GRAPHICAL_BENCHMARK=OFF
+)