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Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.

Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes

SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.

SuperTux - SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original Super...

CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.