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Sineus Arena

Sineus Games

Fight hordes of enemies and defend your Stronghold — all in the spirit of Megabonk, but with co-op and tower defense. Gain power-ups with every level, collect random artifacts from chests, and grow stronger to survive, defeat the boss, and claim a top spot on the Sineus Arena leaderboards!

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About This Game

NO PAUSE MENU ⚔️ NO DOWNTIME 💥 JUST REALT-TIME CHAOS

Sineus Arena takes the spirit of Megabonk and fuses it with intense co-op and tower defense. This is a high-speed bullet heaven survivor-like where every second matters. Fight endless waves, power up your heroes, and build fortifications – all in real-time. Whether solo or co-op, you are the last line of defense for the Stronghold.

KEY FEATURES

Defend the stronghold, venture into the Haze

Choose where to fight. Stay safe behind the Stronghold's walls or push into the deadly Haze for rare resources and powerful upgrades. Your death puts your partner and everything you carry at risk. Your only hope is for your partner to make it out alive.

Heroes, abilities and precise combat

Play as hero-based characters with specialized weapons and passive abilities. Survival demands tight co-op teamwork and flawless positioning. Jump, climb rooftops, and time your dashes perfectly to survive the bullet heaven chaos.

Build while you fight

No pause button. Place buildings, barricades and towers mid-combat. Each hero represents a distinct faction with its own building set, unlocking new tactics and strategies with every run.

Fast runs, global competition

A single run lasts 10 to 15 minutes and ends with a brutal final assault. Compete with other players for the best results on the global leaderboards.

🎮 Megabonk fan? This is your next game!

Community Activity

  1. Sineus ArenaSteam patch notes
  2. Sineus ArenaSteam announcement

    Lobby Building, Boss Lair Fixes and More

    Hey everyone! 👋 Patch 1.3 is here! This update brings the first version of the building system in the lobby. We’ve also fixed several issues with character movement, critical…

  3. Sineus ArenaSteam announcement
  4. Sineus ArenaSteam announcement
  5. Sineus ArenaSteam announcement
  6. Sineus ArenaSteam announcement
  7. Sineus ArenaSteam announcement

    Tooltips, New Mini-Map and Balance Update

    Hey everyone! 👋 We’re still hunting down memory leaks, improving readability and adding the things the game was clearly missing. This big patch adds a lot of new tooltips that…

  8. Sineus ArenaSteam announcement

    Community Items Are Here!

    Hello there, survivors! 👋 Valve has approved our Community Items, which means you can now collect Trading Cards, craft Badges, unlock Profile Backgrounds featuring artwork drawn…

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