Top 11 Open-Source Alternatives to Slither.io

Slither.io

Slither.io is a multiplayer online video game. Players control an avatar resembling a worm, which consumes multicolored pellets, both from other players and ones that naturally spawn on the map in the game, to grow in size.

Product categories

2D Simulator Action Action Games Adventure Games Block-building Games CMS Chess Factory Building Games Gaming Software MMO Online Games

Summary

The top open-source alternatives to Slither.io are A Dark Room, Airmash, and AMPMBET. 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.

A Dark Room Landing Page
1

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
Airmash Landing Page
2

Airmash

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

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
FreeCiv Landing Page
4

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
Lichess Landing Page
5

Lichess

The complete chess experience, play and compete in tournaments with friends others around the world.
Pricing:
- Open Source
#Chess #Games #Online Games 894 social mentions
Roll20 Landing Page
6

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
DayZ Landing Page
7

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
shapez.io Landing Page
8

shapez.io

shapez.io is a fun factory base building game about combining shapes
Pricing:
- Open Source
#Games #RTS #Factory Building 147 social mentions
Minecraft Landing Page
9

Minecraft

A block-building game that allows you to create and explore entire worlds from scratch.
Pricing:
- Open Source
#Games #Block-building Games #2D Simulator 62 social mentions
Newgrounds Landing Page
10

Newgrounds

A community of artists, game developers, musicians, voice actors and writers who create and share some of the best stuff on the web!
Pricing:
- Open Source
#Games #Online Games #Gaming Software 58 social mentions
The Battle for Wesnoth Landing Page
11

The Battle for Wesnoth

The Battle for Wesnoth is a turn-based tactical strategy game with a high fantasy theme.
Pricing:
- Open Source
#Action #MMO #RPG 9 social mentions