River Valley GlassWorks (EN)River Valley GlassWorks The beautiful pieces of glass in the river have attracted the most entrepreneurial of woodland creatures. You'll play as one of these pioneers, taking glass from the market of river tiles and strategically placing them on your player board to score the most points. It's a puzzle y combination of piece placement and drafting where every turn matters. The rules are approachable, but the layers of strategy unravel with each play.