The Wanderer I: Four-Dimensional Earth

Millions of years ago, Earth was a four-dimensional space, and dinosaurs were merely a lie to cover up prehistoric civilization. Now, the Hengling civilization, on the brink of extinction, turns its overwhelming technology toward Earth, plunging three-dimensional humanity into an apocalyptic dead end. In 2055, an alien fleet attacks the solar system, but a mysterious four-dimensional cube appears, annihilates the invaders, and signs a life-or-death pact with humanity: build a four-dimensional space within 400 years in exchange for protection. Ordinary programmer Yang Long and officer Zhang Yu are unexpectedly chosen as 'time outsiders' to bridge the two realms, but they fall into a deep freeze after a dimensional trial. Awakening 75 years later, they find Earth a frozen wasteland, the main Hengling fleet approaching, the protection period expired, and humanity with less than 80 years left. With no hope of victory or escape, humanity launches the desperate 'Mercury Plan,' firing a 'bullet' carrying AI consciousness into the stars, gambling on espionage for a chance at survival. As the truth unravels, a cruel reality emerges: humanity's only path to survival is mutual destruction. Prehistoric dimensional secrets, apocalyptic civilization clashes, and a desperate counterattack—a dimensional war spanning millions of years begins!