Outpost Siege

Play Outpost Siege unblocked

Outpost Siege is a tower defense game you can play unblocked right here on Physics Shark. It runs in your browser with no download, no install and no account, so you can play it on a school Chromebook, a laptop, a phone or a tablet.

What is Outpost Siege?

Top-down survival shooter with base defense. Every night an alien swarm marches on your Outpost's Core: move your Operator around the arena, mow down hundreds of enemies, collect Scrap and use your skill at the right moment. Scrap is also XP: every level-up lets you pick a new weapon (blades, lightning, rockets, fire aura, scattergun, frost) or an upgrade and push it to its evolution. By day, build and evolve turrets around the Core in limited slots, so every build is a real choice, and buy stratagems: airstrike, minefield, Core shield. Clear a 10-night Sector with a boss finale, take on the new Daily Operation every day, then spend Alloys in the Workshop on permanent upgrades. Six Operators with their own skills, two arenas, 29 achievements.

How to play Outpost Siege

Goal: keep the Core in the center alive through every night and defeat the boss of the final night to clear the Sector. PC: move with WASD or arrow keys, skill on Space, dash on Shift, stratagems and level-up choices on keys 1-3, pause on P or Esc. Phone: drag the on-screen joystick, tap the skill, dash and stratagem buttons. Your weapon fires automatically at the nearest enemy; click or tap an enemy to focus fire on it. Pick up Scrap to level up and choose upgrades. In the morning spend Scrap to build or upgrade turrets, repair the Core and buy stratagems, then start the next night. A boss arrives every fifth night.

Outpost Siege FAQ

Is Outpost Siege free to play?

Yes. Outpost Siege is free on Physics Shark, with nothing to download and no account to make. The game has optional in-game purchases, but you never need them to play.

Can I play Outpost Siege unblocked at school?

Outpost Siege runs in a normal browser tab with no install, so it plays on school Chromebooks and laptops, with nothing to install and no account.

Does Outpost Siege work on phones and tablets?

Yes. It works with touch controls on phones and tablets, and with a keyboard and mouse on computers.