This place is a board game rental and gaming site, located in the historical centre of Oliwa. As such, access is easy both with trams (on the other side of Grunwaldzka Av.) and trains (including SKM and long-distance PKP - even Pendolinos).
Krolm is open in the afternoon on weekdays and from noon till midnight on Sundays. It is both a gaming site, with two rooms for players and a rental site - You can rent any game for up to 72 hours (with deposit required). IF You decide to game on site, basic beverages are available on site - with quite attractive prices, sloser to a grocery store than a bar.
Tables can be set up for a tabletop game - there is enough terrain for at least 6 4' square tables, and gaming mats provide a very good gaming surface that is fast to deploy too.
Aside from casual games, some event are organised occasionally, including tabletop tournaments. The owner himself is a Warhammer/9thAge player.
When I visited the placeit was crewed by the owner - who is very heplful and knowledgable , so will surely recommend a game for Your liking!
All in all I fully recommend the place!