This kind of game was common in BBC Basic, way back in the 80s and 90s. It was limited to 255-ish tokens per line. (Excitingly, the keyboard buffer was 255 char

This kind of game was common in BBC Basic, way back in the 80s and 90s. It was limited to 255-ish tokens per line. (Excitingly, the keyboard buffer was 255 characters, but each keyword was tokenised to a single byte. Which meant that with trickery it was possible to get lines of Basic longer than it was actually possible to edit.) At least one of the computer magazines of the day had a regular column of one-line BBC Basic programs sent in by readers. There were some quite good games. Alas, I suspect that most of these have been lost to history, but here's a one-line Tetris: 0d=d:IFdVDUd:a=POINT(32*POS,31-VPOS<<5):RETURNELSEMODE9:GCOL-9:CLG:O FF:d=9:REPEATVDU30:REPEATGOSUBFALSE:IFPOS=28VDUPOS,15,VPOS,24;11,26:IF0E LSEIFa=0PRINT:UNTIL0ELSEUNTILVPOS=25:v=ABSRNDMOD7:i=0:VDU4895;3:REPEATm= 9-INKEY6MOD3:FORr=TRUETO1:t=rANDSGNt:IFt=rCOLOURv-15:VDUrEORm:i+=m=7AND9 -6*r:IF0ELSEFORn=0TO11:d=n/3OR2EORd:GOSUBFALSE:IF1<<(n+i)MOD12AND975AND& C2590EC/8^vVDU2080*ABSr;:t+=a:IF0ELSENEXT,:VDU20:UNTILt*LOGm:UNTILVPOS=3 http://survex.com/~olly/rheolism/dsm_rheolism/ http://survex.com/~olly/rheolism/dsm_rheolism/