| 1 | 37,020 | 69,347 | rtype | The fastest type checking gem |
| 2 | 44,761 | 132,668 | rtype-native | C native extension for Rtype |
| 3 | 48,371 | 39,860 | rtype-java | Java extension for Rtype |
| 4 | 89,597 | 69,347 | rtype-legacy | Rtype for old ruby (1.9+) |
| 5 | 109,882 | 132,668 | rtype-legacy-java | Java extension for rtype-legacy |
| 6 | 114,319 | 132,668 | rtype-legacy-native | C native extension for rtype-legacy |
| 7 | 128,398 | 48,424 | class-enum | 'classial' enum for Ruby |
| 8 | 133,545 | 132,668 | rb_event | Simple event library. You can use event in Ruby like AS3, .Net |
| 9 | 157,455 | 132,668 | rolify_hier | The very simple role hierarchy library for rolify. fin |