OSG started out as TSG(Tactical Studies Group) with Napoleon at Bay.Then quickly changed their name to OSG(Operational Studies Group) .I'm glad they did. TSG sounded too close to TSR! OSG came out with a very nice line up of games in the early years-Napoleon at Leipzig,Dark December,Tunisia,Panzerkreig(update of Rands von Manstein in the Ukraine),Napoleon at Bay,Bonaparte in Italy and those nice little capsule games like Legend of Robin Hood ,Arcola,Battles of the Hundred Days,20th Maine.
Then OSG disappeared. NaB,Panzerkrieg and the small capsule games were sold to Avalon Hill. and NaL ended up with Clash of Arms.
OSG came back again like the legendary Phoenix to grace our gaming tables with a new Napoleon at Bay,Four Lost Battles,Highway to the Kremlin ,Sun of Austerlitz and other titles.I'm glad Kevin Zucker brought the company back to us again. I missed OSG when they faded from the scene. I had hopes when OSG first came out with those first games they would fill a large nitch left by SPI's downfall but that was not to be.But Kevin has produced some fine new games and the future looks good for them. at least I'm happy they came back.