“Quadra 1.1.0 is available now from Ludus Design.”
“Puzzle game fans can obtain their new version of Quadra at
Ludus Design for a free 30 days trial of the game. A registration
fee of US$10 is then required to continue playing the game. Quadra
players who have already registered a previous version of the game
can use this new version free of charge.”
“Quadra is both an addictive puzzle game and a competitive,
action-packed multi-player game. It’s available for Windows
95/98 and Linux. The original version was released in May of 1999
and has since attracted a dedicated following.”