連鎖崩潰中！緊急維修！
☢️ 末日避難所
Shelter 100 is a free post-apocalyptic survival game where you manage a crumbling underground bunker after the end of the world. Four vital resources — supplies, water, airlock integrity, and food — drain constantly, and you need to keep them all above zero for as many days as possible.
The twist that makes this shelter building game online genuinely tense is the cascade failure system. When any non-fatal resource hits zero, it doesn't just stay empty — it accelerates the drain on related resources. Let water run dry and your airlock starts degrading twice as fast. Let supplies hit zero and water drains faster. These multipliers stack, so a single neglected resource can spiral into a chain reaction that brings the whole bunker down.
Six maintenance rooms offer different mini-games to restore each resource, from trash sorting and packing puzzles to balance scales and fruit slicing. If you enjoy this bunker survival browser game, Space Watch offers a similar resource-juggling experience set in a space station — or try Cyber Syndicate for a cyberpunk hacker strategy game with ten different mini-game challenges.
As a fallout shelter like game browser experience, Shelter 100 captures the dread of managing scarcity. The post-apocalyptic resource management game loop forces constant prioritization — you can't fix everything, so you choose what to sacrifice. Drain rates increase every 60 seconds. This free survival strategy game rewards players who think two steps ahead and recover from cascade failures.
Never let water hit zero — it cascades directly into airlock, which is the only resource that ends the game. If water is dropping, fix it before anything else. When a cascade is active, prioritize restoring the zeroed resource to clear the multiplier — relief clears the cascade immediately.
Don't hoard mini-game wins on one resource; the cap means excess rewards are wasted. Spread your attention across all four bars and treat cascade recovery as an emergency override.
Yes, completely free. No downloads, sign-ups, or purchases — just open the page and start surviving.
Yes. Shelter 100 runs on any modern browser, including mobile phones and tablets. All six mini-games support touch controls.
Click a maintenance room to play its mini-game, restore the matching resource, and keep all four bars above zero in this post-apocalyptic survival game. Only airlock hitting zero ends the game.
When a non-fatal resource drops to zero, it doubles the drain rate on a related resource. These multipliers stack up to x4. Restore the depleted resource to clear the cascade.
Your best survival records and leaderboard rankings are saved locally in your browser. Each run starts from day one — there's no mid-game save.