Winter evening activities - co-operative board games

Among our recent favourite activites for winter evenings is playing games in front of the cozy fire.  It's amazing what a 2.5 year old attention span can hold - we can play our own simplified versions of "go fish", dominoes, chess, crokinole, charades, pictionary, and puzzles of course - but we also like board games.  We have a few great games from Family Pastimes, a small company based in Ontario that creates games which foster co-operation rather than competition.  We like "Harvest Time" (work together to plant and harvest a garden before winter comes) and "Berries, bugs and bullfrogs" (gather berries before the slugs eat them), and there are plenty more on their list for older ages.