| URL | Priority | Change frequency | Last modified (GMT) |
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| http://lambdageneration.com/home/news/other/portal-2-dlc-1-peer-review-released-for-free-on-steam-ps3-and-360-game-now-50-off/ | 20% | Weekly | 2011-10-05 00:50 |
| http://lambdageneration.com/home/news/other/planetphillip-releases-maptap-application-for-hl2-custom-maps-and-celebrates-its-8th-site-birthday/ | 20% | Weekly | 2011-10-04 20:08 |
| http://lambdageneration.com/home/news/other/news-roundup-60/ | 20% | Weekly | 2011-10-04 20:08 |
| http://lambdageneration.com/home/news/other/portal-2-dlc-1-peer-review-to-be-released-for-free-around-the-4th-of-october-and-the-portal-2-soundtrack-volume-3-released-featuring-a-new-turret-comic/ | 20% | Weekly | 2011-10-01 00:38 |