Doomsday: Infinity Fortress, Start with RV and Upgrade

Jiang Mo traveled to a doomsday world where zombies were rampant and mutated beasts evolved crazily. The water sources are polluted, the land is no longer suitable for cultivation, and the survivors are struggling to survive. Fortunately, Jiang Mo bound the Infinity Fortress system and bound a RV as a carrier, and started the upgrade path from then on. Bite! The water purifier was successfully upgraded and I have pure water to drink every day. Bite! The cab upgrade is successful and smart driving is enabled. Bite! The fortress was successfully upgraded and the total volume increased by 500 cubic meters. Bite! The thruster upgrade was successful and the fortress achieved air flight. This is a steel fortress that can fly, and our journey is the sea of ​​stars. The introduction is weak, please read the text This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.