Quick steps to get started
Bugs are attacking your castle and you are the last turret standing.
Aim with your mouse on desktop or drag on the screen on mobile - the turret fires nonstop in that direction, so position your shots wisely.
Survive endless waves: every wave you survive upgrades your turret, and a giant boss arrives every 5th wave.
Grab falling supply crates to gain bonuses - Rapid Fire, Cannon, Triple Shot and Freeze - and drag two crates together to combine them into a stronger mega bonus.
Bugs that reach the wall damage your castle, so stop them before they arrive.
Repair the castle with coins between waves, climb the local top 10 leaderboard, and hold the line as long as you can.
What's it all about?
Aim, fire, survive — defend your castle from endless bug swarms and giant bosses in this intense arcade shooter. Face off against massive waves of unique insects, unlock powerful upgrades for your defenses, and test your skills against epic giant bosses. How long can your castle hold out against the ultimate swarm siege?
Our player, ratings, and related picks
Play Swarm Siege free on CubicRubik in our arcade collection. We host the game in a fast browser player, keep your recent plays and favorites on our site, and show related titles so your next session is one click away.
Unlike bare embed pages, CubicRubik adds ratings, category context, how-to steps, and curated related games around Swarm Siege—so you get discovery and guidance, not only a third-party frame.
Quick answers before you play
Platforms & genres
