Aeon Rivals — Free-to-Play 2D MMO!

Welcome to Aeon Rivals, a free 2D side-scroller MMO for Windows and Mac. Team up with friends, select from an expanding cast of characters and duke it out against invading Celestian monsters. You’ll have to stay on guard if you want to take these beasts down!

Celestians are invading Earth2, the home planet of many innocent lifeforms. As a member of the Aeon Rivals, your job is to stop the destruction of Earth2 before the damages become irreparable.

While Aeon Rivals is a 100% free 2D MMO, we have a strong stance against pay-to-win schemes. All our extra features offered will never give players unfair gameplay advantages. Our goal is to keep the playing field as level as possible so it stays skill-based and enjoyable for everyone.

Download For Free!Create Account

Want more costumes and other exclusive content?
Join Club Aeon, which also helps support PRIZZA, the game creator who has been developing this game for years on his own.

Feel free to stop by Discord for the chance to discuss the game with PRIZZA and other Aeon Guild members.


Update [2.2.3]


A little update before the weekend that patches out slope issues in the Dark Zone and an issue with one of Luck Monkey’s abilities. This patch also provides a few other little modifications and an improvement to Müja.

Check here for the last set of major changes. Click the changelog below for a complete list of changes.

Enjoy Aeon Rivals? Join Club Aeon! You'll get lots of cool stuff and directly support game development.


General Changes
  • Slope collision issue in Dark Zone.
  • Celestians now have greater wiggle room for lag correction, helping to prevent teleporting.
  • Victory Café menu updated.
Character Changes
  • Luck Monkey’s「Network Transfer」may wedge into specific slopes and cause freeze.
  • Müja’s「Alchemy: Flame」and「Alchemy: Shock」give an additional +1 Style.
Celestian Changes
  • [N/A]


Top Players (November 2018)

🎊galvahad earned 8 points last month, earning them 1st overall. Congrats!🎊

# Name Victory Points
Click "More" below to view all rankings...

Update [2.2.2]



It’s the holiday season again and a few familiar events are taking place! Help the guild collect Snowdrift for a rare gift and login daily to receive special Merry Gifts. This release gives Luck Monkey a brand new secondary attack, helping with his overall toolkit and team value.


Collect Snowdrift crystals to create a rare Acolyte Beast Egg. Read more »

To: You  From: Earth2

Daily login rewards. Who knows what’s inside each Merry Gift? Read more »

Check the changelog below for a complete list of changes.

Enjoy Aeon Rivals? Join Club Aeon! You'll get lots of cool stuff and directly support game development.


General Changes
  • Major updates to Luck Monkey’s ability set and effects.
  • FIX] Character shields effects disappear for remote users even when held.
  • Gloobin and KeRobo are now unlocked form the start.
  • Various tweaks to “hit pause” mechanic for some attacks.
  • Beast stun time reduced for lowest type of stun.
  • Effect layering adjustments.
  • Updated Character stat texts.
  • Flavor text changes.
  • Multiple performance improvements.
Character Changes
  • Doragon’s「Eat」interferes with remote player cooldowns.
  • Muja’s alternate fireballs play incorrect sound on contact.
  • Luck Monkey
    • His technology has evolved further with the new secondary attack,「Execute Payload」which spreads malware to all Beasts in the area. Luck Monkey taps into their locomotive power to help deliver kinetic pop-up windows that damage anything they touch, slowing all affected beasts in the process. He will receive a slight cooldown reduction for each Beast he borrows kinetic energy from.
    • Smileys can be overloaded with Luck Monkey’s malware by using「Execute Payload」with a Virus extract to enhance its power. Duration of malware overload has been increased by nearly 2x, dealing 85 base damage. These dark smilies are somewhat skilled in detecting weakspots, with a +5% chance to deal a Elemental Burst hit.
    • 「CONGRATULATIONS!」has slightly less slide distance
    • Window effects now feature a smooth pop-up animation and extended fade + some extra polish to the frame.
    • Guard now uses new pop-up animation and prevents potential text-flipping issues.
    • General changes to help all of his mechanics cooperate with the new techniques.
Celestian Changes
  • [N/A]


Cyber Monday 2018

It’s Cyber Monday, so that means digital deals!
Today kicks off Cyber Week Club Aeon memberships are 50% off when you use the code HALFOFF at checkout. This deal only lasts until Sunday, so get it while it’s hot!


Update [2.2.1]


Happy Halloween! This update adds a costume pack and includes some minor changes.

Halloween 2018

Celebrate Halloween ’18 with the new Halloween 2018 pack. This Flavor will cause slimy creatures known as Plasmo to haunt your Character, swirling about and tagging along. The harder these creatures laugh, the more transparent they become.

Click the changelog below for a complete list of changes.

Enjoy Aeon Rivals? Join Club Aeon! You'll get lots of cool stuff and directly support game development.


General Changes
  • Halloween 2018 Costume Pack.
  • Chocolate Pumpkin consumable item.
  • Aeon Sign screen update call issue.
  • Flavor refresh order changed to prevent spawning in the wrong spot.
  • Seasonal updates to Victory Cafe menu.
  • Acolyte Beast egg graphic improvements.
  • X-Bulletin re-positioning.
Character Changes
  • N/A
Enemy Changes
  • N/A


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