Moodle is an open-source Content Management, Course Management, and Learning Management System. It is extremely powerful and, although free to download and install, it rivals the performance and featureset of many paid-for LMSs. Moodle is reportedly the world's most popular LMS for small to medium organisations with less than 5,000 users. There are hundreds of thousands of implementations worldwide and tens of millions of users: http://moodle.net/stats/
Moodle is generally quite compatible with Captivate content, although it's support for SCORM 1.2 is reportedly much better than support for SCORM 2004.
Moodle forum posts on SCORM issues: https://moodle.org/mod/forum/view.php?id=1951
Moodle forum posts on Adobe Captivate: https://moodle.org/mod/forum/search.php?search=Adobe+Captivate&id=5
Moodle may not work with Captivate 5 content if datamodel.php file in the /mod/scorm/ directory is being cached: https://forums.adobe.com/message/3708647
Check out this link for instructions on setting up a SCORM course in Moodle 2.2:
See this page for information about Moodle and SCORM:
I've used Moodle many times in the past to host courses and generally find the best results are with SCORM 1.2 and the following settings: