Top 5 Open-Source Alternatives to Portal

Product categories

Action Electronics Games Note Taking Productivity Project Management Simulation Task Management VPS Virtual Reality Virtual Worlds Web Frameworks

Summary

The top open-source alternatives to Portal are Toad Strikes Back, Flow, and Hubs by Mozilla. 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.

Toad Strikes Back Landing Page
1

Toad Strikes Back

Toad Strikes Back is fan game based on classic Super Mario Bros. titles.
Pricing:
- Open Source
#Project Management #Electronics #Action
Flow Landing Page
2

Flow

Stop managing projects from your inbox.
Pricing:
- Open Source
#Project Management #Task Management #Work Collaboration 1 social mentions
Hubs by Mozilla Landing Page
3

Hubs by Mozilla

A WebVR experiment from Mozilla Mixed Reality
Pricing:
- Open Source
#Virtual Reality #Virtual Worlds #Games 42 social mentions
Torque (video game) Landing Page
4

Torque (video game)

Torque is a physics-based first-person puzzle/platformer, relatively close to Portal in its...
Pricing:
- Open Source
#Project Management #Note Taking #VPS 108 social mentions
manifoldco Landing Page
5

manifoldco

Everything you need to sell your tools, services, and APIs
Pricing:
- Open Source
#Project Management #Task Management #Productivity