The following keys are used by default (first start) in the Game:

key_right:           cursor-right-key
key_left:            cursor-left-key
key_up:              cursor-up-key
key_down:            cursor-down-key
key-strafe-left:     ','
key-strafe-right:    '.'

key_fire:            Control-key 
key_use:             Space-key 
key_strafe:          Alt/Meta-key 
key_speed:           Shift-key

key_flyup:           PageUp-key 
key_flydown:         Insert-key 
key_flycenter:       Home-key

key_lookup:          PageDown-key 
key_lookdown:        Delete-key 
key_lookcenter:      End-key

key_invleft:         'k' (or '[' if "-DORIG_INVKEYS" defined in Makefile)
key_invright:        'l' (or ']' if "-DORIG_INVKEYS" defined in Makefile)
key_useartifact:     Return-key

key_AUTOMAP:         TAB-key

In game-mode:
to make game screen bigger: '+'
to make game screen smaller: '-'

In Automap-mode:
to zoom in: '+'
zo zoom out: '-'


To change these keys, edit the generated 'heretic.cfg'.