graphics/armor_bonus.png
graphics/health_bonus.png
Derived from Dungeon Crawl 32x32 tiles
by Chris Hamons (maintainer)
http://opengameart.org/content/dungeon-crawl-32x32-tiles
http://creativecommons.org/publicdomain/zero/1.0/

graphics/bfg_plasma_20x20.png
graphics/bfg_spark.png
Derived 2D Shooter Effects (Alpha version)
by Tatermand
http://opengameart.org/content/2d-shooter-effects-alpha-version
http://creativecommons.org/publicdomain/zero/1.0/

graphics/stimpack.png
Adapted from Various inventory 24 pixel icon set
By OceansDream
http://opengameart.org/content/various-inventory-24-pixel-icon-set
http://creativecommons.org/licenses/by/3.0/

sounds/bfg.ogg
x_explosion.wav
by cubicApocalypse
http://freesound.org/people/cubicApocalypse/sounds/256658/
http://creativecommons.org/licenses/by/4.0/

sounds/bfg_hit.ogg
DSRXPLOD.WAV
by wildweasel
http://freesound.org/people/wildweasel/sounds/39020/
http://creativecommons.org/licenses/by/4.0/

sounds/sshotgun.ogg
sounds/sshotgun_r.ogg
Chaingun, pistol, rifle, shotgun shots
by Michel Baradari
http://opengameart.org/content/chaingun-pistol-rifle-shotgun-shots
http://creativecommons.org/licenses/by/3.0/