Free Software Directory
AlternativeTo
Softpedia
Product Hunt
Filehippo
FileHorse.com
Slant.co
MajorGeeks
The Linux Alternative Project
Product Hunt
AlternativeTo
Alternative.me
Filehippo
Open Source Game Clones
Slant.co
RTINGS.com
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Product Hunt - A website that lets users share and discover new products
Softpedia - A library of over 1,000,000 free and free-to-try applications for Windows, Mac, Linux and Smartphones, Games and Drivers plus tech-focused news and reviews
Alternative.me - Welcome to alternative.me, the source of better software alternatives. Finding suitable software was never easier.
Filehippo - Filehippo is your key to opening files that Windows claims are "in use by another user" or simply "can't be found." Avoid the hassle.
FileHorse.com - Fast and simple way to download free software for Windows and Mac.