By default the HERO System leans towards "cinematic" resolution,
which is basically a euphemism for "Action Movie level of realism".
Dice rolls are weighted towards success (average roll of 11-
= 62.5%), rulings and ties favor the defender, points generally
round in a character's favor, and so forth. This is a very generous
and permissive approach and it work very well for many sorts
This general bias exists in the realm of doing damage as well;
it's actually quite difficult to kill a character using
baseline stats, gear, and rules. Its much more likely a character
will be knocked out than killed by opponents attacks.
If this suits your preference then the good news is you don't
have to change anything. This level of play is very forgiving,
Total Party Kills (TPK's) are practically unheard of, and
PC death will be a rare event. There is nothing intrinsically
wrong with this set up; in fact quite the opposite -- it works
great for certain styles of play and fits some genres perfectly,
including some sub-genres of Fantasy.
However most forms of Fantasy are generally more lethal than
this, with characters routinely slaying other characters, "monsters",
and whathaveyou. In campaigns where this is the standard the
natural bias of the system presents several points of friction
that can detract from play. This ranges from combats taking
too long, large combats such as those common to some source
material impractical, and forcing characters to resort to "coup
de gras" vs. downed opponents to technically "kill"
If the natural bias of the game towards non-lethal outcomes
isn't a good fit for your campaign, the good news is there
are literally a plethora of options for making things deadlier.
Presented here in the associated documents is a running list
of the options I consider to be most useful or deserving of
discussion. This list isn't comprehensive, but it should
cover enough ground to get you going.
However before entering into the discussion of how to make your
games more lethal, I will offer a little advice: don't go
hog-wild. Be careful and go slow; if adding options to an existing
campaign add them one at a time and try it out before adding
another more-lethal option. You can always add more, but its
hard to take away (particularly if one or more PC's have
been done in already by a particular rule you instituted). If
starting up a new campaign choose options that suit the tone
you are going for but don't take more than one option you
aren't personally familiar with.
Also always consider the personalities and tolerance for grit
of your players; many players will become unhappy if a campaign
gets too lethal / gritty even if they initially say that they
want it -- the usually don't really realize what they are
asking for when they say "more lethal", or more typically
really mean they want their characters to be more lethal
rather than the game itself.