-'plain' disables a number of features (Tholians, planets &
-dilithium, Thingies shooting back, deep-space-probes, Klingon ramming
-and movement, time-warping through black holes, death-ray upgrade),
-approximating the original CDC 6600 FORTRAN game from UT Austin. The
-option 'almy' approximates Tom Almy's C translation from 1979,
-disabling Thingies shooting back, base shields, and time-warping
-through black holes.</para>
+'plain' approximated the original CDC 6600 FORTRAN game from UT Austin
+and disables a number of features: Tholians, planets & dilithium,
+Thingies shooting back, deep-space-probes, Klingon ramming and
+movement, time-warping through black holes, death-ray
+upgrade. inhabited worlds. The option 'almy' approximates Tom Almy's
+C translation from 1979, disabling Thingies shooting back, base
+shields, time-warping through black holes, and inhabited
+worlds.</para>