Top 12 Open-Source Alternatives to Agar.io

Product categories

Action Action Games Adventure Games CMS Chess Comparison Factory Building Gambling Game Engine Games Gaming Online Games

Summary

The top open-source alternatives to Agar.io are Slope Game 3D, FreeCiv, and Roll20. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

slopegame3d.com
1

Slope Game 3D

Slope Game is a popular online game that has sparked a lot of conversation among players of all ages.
Pricing:
- Open Source
#Games #Online Games #Chess
FreeCiv Landing Page
2

FreeCiv

Freeciv is an open-source, turn-based strategy game based on Civilization II.
Pricing:
- Open Source
#Games #Strategy Games #Action Games 19 social mentions
Roll20 Landing Page
3

Roll20

Roll20 is a suite of easy-to-use digital tools that expand pen-and-paper gameplay.
Pricing:
- Open Source
#Gaming #Game Engine #Online Games 334 social mentions
Airmash Landing Page
4

Airmash

Multiplayer Missile Warfare HTML5 Game
Pricing:
- Open Source
#Games #Online Games #MMO 3 social mentions
AMPMBET Landing Page
5

AMPMBET

AMPMBET is built-in 2013. It provides you with thousands of kinds of video slots and offers daily big prizes.
Pricing:
- Open Source
- Free
- Free Trial
#Games #Online Games #Online Slots
Lichess Landing Page
6

Lichess

The complete chess experience, play and compete in tournaments with friends others around the world.
Pricing:
- Open Source
#Chess #Games #Online Games 893 social mentions
Steam Database Landing Page
7

Steam Database

This tool was made to give better insight into the applications that Steam has in its absolutely huge database.
Pricing:
- Open Source
#Games #Group Chat & Notifications #Comparison 680 social mentions
OpenRCT2 Landing Page
8

OpenRCT2

Game engine recreation of RollerCoaster Tycoon 2 adding new features.
Pricing:
- Open Source
#Games #CMS #Website Builder 98 social mentions
OpenMW Landing Page
9

OpenMW

Open source Elderscrolls 3: Morrowind engine re-implementation.
Pricing:
- Open Source
#Action #CMS #Games 161 social mentions
shapez.io Landing Page
10

shapez.io

shapez.io is a fun factory base building game about combining shapes
Pricing:
- Open Source
#Games #RTS #Factory Building 147 social mentions
A Dark Room Landing Page
11

A Dark Room

A Dark Room is an incremental clicker game with a minimalist interface and intriguing story.
Pricing:
- Open Source
#Games #Online Games #CMS 54 social mentions
DayZ Landing Page
12

DayZ

DayZ is an open world multiplayer survival game that tosses you in the midst of a zombie apocalypse.
Pricing:
- Open Source
#Games #Action Games #Adventure Games 3 social mentions