LPC

LPMuds allow you to change old objects and add new ones while the game is running.

List of LPC keywords -
for, if, while, switch, case, foreach, int, float, string, void, class, mapping, object, mixed, varargs, nomask, static, private, public, inherit.

Pre-compiler directives are -
#define, #undefine, #include, #ifdef, #ifndef, #if, #elseif, #else, #endif, #pragma.

Finally, a Hello World program in LPC, showing how similar it is to C-

inherit "/std/object.c";

void create()
{
  set_name("object");
  set_id("object");
  set_short("An object");
  set_long("This is an object.  You can push it.\n");
  set_weight(1);
  set_light(1);
  set_value(1);
}

void init()
{
  add_action("do_push","push");
}

int do_push()
{
  write("The object says: Hello world!\n");
  return 1;
}