- scheme-r4rs Scheme interpreter with the R4RS environment
- scheme-r5rs Scheme interpreter with the R5RS environment
- scheme-ieee-11878-1900 Scheme interpreter with the IEEE-11878-1900 environment
- scheme-srfi-0 Scheme interpreter accepting the SRFI 0 language extension
- scheme-srfi-7 Scheme interpreter accepting the SRFI 7 language
- scheme-srfi-55 Scheme interpreter accepting the SRFI 55 language extension
+ scheme-r4rs Scheme interpreter with the R4RS environment
+ scheme-r5rs Scheme interpreter with the R5RS environment
+ scheme-ieee-11878-1900 Scheme interpreter with the IEEE-11878-1900
+ environment
+ scheme-srfi-0 Scheme interpreter accepting the SRFI 0 language
+ extension
+ scheme-srfi-7 Scheme interpreter accepting the SRFI 7 language
+ extension
+ scheme-srfi-55 Scheme interpreter accepting the SRFI 55 language
+ extension
+
+Games and Game-related
+----------------------
+ doom-engine An executable Doom engine
+ boom-engine An executable Doom engine supporting the 'boom'
+ feature-set
+ doom-wad The data component of a Doom game, compatible with
+ the original Doom engine
+ boom-wad The data component of a Doom game, using features
+ from the "boom" engine family