| 1 | 89,432 | 119,687 | baobab | ID3 decision trees for machine learning in Ruby |
| 2 | 96,272 | 89,909 | eksek | Execute shell commands and easily get stdout, stderr, exit code, and more |
| 3 | 110,017 | 119,687 | carmenere | Cluster algorithms |
| 4 | 117,186 | 89,909 | forty-two | If you ever wondered why 1 + 1 isn't 42, this is your chance to do something about it. |
| 5 | 118,145 | 164,381 | probaberry | Do probabily homework with irb! |
| 6 | 145,765 | 119,687 | autohash | Hashes where keys can be automatically calculated based on the value inserted |
| 7 | 156,331 | 164,381 | redpanda | Red panda! |
| 8 | 158,332 | 119,687 | usearchtree | Uninformed search trees! |