Interdimensional Train: I Upgrade Everything with the Junk I Pick Up!

[A Journey Across Worlds] + [Original Plot, Not Copying the Source Material] + [Upgrade the Train into a Base] + [Scavenge for Upgrade Points] + [Farming and Stockpiling Supplies] + [Clever but Not Invincible] Current world: [The Walking Dead - Terminus] Possible worlds: [The Hobbit - Scouring of the Shire] [Hogwarts - Platform Nine and Three-Quarters] [Spirited Away - Sea Railway] [One Piece - Water Seven]... Recruited employee: [Train to Busan - Yoon Sang-hwa] After the train passes through a tunnel, Wang Jue opens his eyes again. Before him is an old steam locomotive, and... the ruined station is packed with countless terrifying walkers! How did I transmigrate without dying?! After a night of fleeing and pursuit, he finally escapes the city and reaches a train station at a lumber mill in the woods. Now he has a few problems: he has a System, but it’s greedy. He gets one free draw a day, with three options to choose from, but everything costs money to redeem. He has a storage space, but it’s tiny, and upgrading it costs money too. He has an old train that can be upgraded indefinitely, but it might not even outrun a bicycle. Want to upgrade it? Pay up! No water, no food, no weapons to defend himself. He has only one goal... survive for now! [After surviving, he’ll farm and upgrade the train, build a team with card draws, and grow his power. As long as the protagonist has upgrade points, the System can do anything... except upgrade him. All we can do is wish him luck! <(￣︶￣)↗[GO!]] [PS: Each world is real, and some events differ from the story in this world. Friends from higher dimensions, please don’t blindly assume the original plot applies.]