Boonlake Artifacts Expansion GameDescriptionSpecificationsShipping EXPANSION FOR: BOONLAKE Find treasures and mysterious artefacts on a new map. 1 4 Players 80 160 Mins Ages 14+ For some weeks, all sorts of treasure hunters have been scurrying around Boonlake. Odd artifacts that were found in the lake have attracted your attention. They are of a special nature and require a strange form of energy source. It seems as if they are powered by a Variable Atomic System Energy in short, V.