We built CardGamers.io because every free card game site we found had intrusive ads, or didn't take the scoring seriously. ♠ Bridge—Full American bidding , 4-hand sessions with proper vulnerability rotation, Rubber / Duplicate / IMP scoring, session analysis with plain-English insight after each session ♠ Spades ♣ Solitaire Bridge with real IMP scoring (not just rubber points) — rare online 4-hand session format with cumulative scoring and session analysis After your session, review every hand