life is a simple "game" (or, rather, toy) that involves a simulation of
one or more species of creatures replicating and eating other creatures
in an environment. You can run it in "default" mode with the -d switch, 
which has plants and herbivores trying to survive. Or, you can use 
"interactive mode", which lets you tweak *every* paramater, right down to 
the color of each species. It's a bit addicting, and much more fun than 
'suicide'.

Tips:
- The first species you create is merely the producer, which doesn't eat,
only relpicates. The next species is the primary consumer, which eats the
producer. Subsequent species can either be primary consumers, secondary
consumers, or omnivores.
- You can save your state to a file, enabling you to resume work without
using ^Z, another TTY, or 'screen'.

Screenshot of the "default" mode after a few iterations:

FFFFh FFFF H FF  F  HFFF HF FF  FFH HFFFFFFFFFhFhh FF F FFFF F) FOREST      908
FFFFFFFFFFHFhF FFF FFFFFFH FFHh FFF FFFFFFFFF FH H H FFF FFF H) HERBIVORE   212
FFFFhFF FFFFhFHFFFFHFFFFFFFFF  h FFFh  FFFFF  HFFHFF FFFHFFF
FhFFFFFFHF   FFFFFFF FFFFFFFFFFFhH FF FFFFFH FFFhF hHF  FFFF
 FFFFFFFFFhFFFFFFFFF  FF FFFFFFFFFHhFhFFFF  FFFFF FHFFF F FF
FFFFFF FF  HhFFFFFFH FFFFhFFFFF    H FFFFFFhFhFFFFFFFFHH   F
FHFHFFHF  FFF FFFFFFFF H h HFFFFF H FFFFFFFh  FFFFFFFFFH hh
  HFFFFhFHFFhFFFFFFFhFFF HhHFF  F FFFFhFFFFFh F  FFFFFHFFF H
hhFFFHFFFFFF  FFFFF F FFF hFFhHF HFFF  FFFFF FFFHFFFFFFFFFFF
 FFFF FFFFFF FFH FHF hFFFFFFFFFF hFFF FFFFFFFFFFFFF FF FFFFF
FFH  FHH FF  F  FFhHFFHFHFFFFFFF FFFFFhFFFFFFFFhFFhFFhF FFFF
FFFFFFHHFFFF hF HFFH FFh FFFFFFFFFF  FFFFFFF hFFFFFFFFFFFFFF
FFFFF FFFFFFH FFFFFFh  H F HFFFHFF F HFFHh F FFFFFFFFFFFFFFF
FFF H FHF F h FFFFFFFFF FFFFFFFFFF HF FFF H FFFFFFFFFFFFFFF
FFFF F FH FFhFhFFFF   h FFFFFFFFFh FF FFFh FhFFFhFFFFFFhFFF
 HFFFFFFFHHFFFFFFFFFhFhH F  h HF  FF   FFFFFFFFFF FFFFFF FFh
   HFF FFF  FFFFFFFh FHHFFHH F F F H HFFFFFFFFFH FFFF FHFFFF
 FFFF FhFF  FFFFF  FFFFFFFhhFFFFFFhFFFFFFFFFFFF FFFFFF F FFF
FFFF FFHFFFFFFFFFh h  F F FFFhFFFFhFFF FFF FFFFH FF hHFF FFF
FFFFFH HFFFFFFFFHF  FFFFhFFFFFFF FhFFF hFF   hFhFFF  FFhFFF
FFFF FF hFFFHFFFHFFFFFHFHFFF FF Hh HH FHFFFFFFFF FFFFFF FFF
FFh Fh   FF FFFFFFFFFFFHhFFFFhF HHhF FFFFFFFFFFFFH FFFF HFFh

C) Continue Q) Quit