Xaurum is a crypto-currency with a continuously growing gold base. It has appreciated from the initial 0.00625 $ per XAUR to the current 0.30 $ and has increased its common gold reserves from 1016 g to the current 129251 g. Xaurum Gamma is a commonwealth within the Xaurum commonwealth, that applies the concept of Xaurum within its established economic framework, and benefits both. Gamma increases the use of Xaurum and its coinage, and Xaurum enhances the value of Gamma.Xaurum Gamma is a commonwealth of the first crypto smart-street. It is composed of six luxury villas on the island Krk in Croatia, a prime tourist real-estate. The goal of Xaurum projects is to preserve and increase value. The investments must therefore be long-term, relatively safe, yield the most profit and be augmentable by speculation. Real-estate is a safe investment, especially in a touristic setting. However, the time required for profitability makes it infeasible for small investors and crypto can mitigate this downside. The creation of Xaurum Gamma, a crypto-asset that represents half of the profit (and accumulates it in xaurum), creates a way for investors to benefit from speculation. It avoids its potential downside by employing scarcity (the number of Xaurum Gamma tokens is limited), guaranteeing a minimal value through its use (Xaurum Gamma tokens can be used to rent a villa at the rate 1 XGM : 100 € or higher when recapitalized) and the growth of its xaurum reserves.