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There were once the days of the sea creatures, the dinosaurs, the wooly mammoth, and the Homo sapien himself. Now enter, the days of the Monsters! While mass extinctions usually occur by nature itself, this one has begun due to one mad scientist who was picked on a little bit too much when he went to school. Now with him, you can control all of the different monsters, adding on upgrades as you go. So, how efficiently can you destroy all of the worlds major cities? Just remember, don't try this at home, or in your sandbox for that matter. Days of Monsters is one of our many Action Games that we publish on This game is also tagged as a Monster game. Click the play button to start having fun. To play even more free games, view our popular and new games page. If you want to play more games like this, then you can simply check out the games inside the game tags that are the most relevant to your interests or the Action Games category or the games like this game page at the end of the game tags.

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