This paper model is a Hydralisk, based on the game StarCraft 2, the papercraft was created by Nethear. The hydralisk is the zerg basic front-line creature, forming the backbone of their onslaughts with its resistant carapace and ranged spine attack.
Prior to the beginning of the Brood War, hydralisks gained the ability to mutate into lurkers. The first recorded encounter between terrans and hydralisks was aboard a cargo vessel. The hydralisk was recorded by the derelict ship's security cameras. Since then, hydralisks have established themselves in terran culture to a notable extent. Sometimes colloquially called "hydras," hydralisk skulls have been mounted akin to trophies in Joeyray's Bar and on an ore loader on Sorona. The Annual Hydralisk Derby has also become an established event. Current terran tactics for dealing with the creatures stress the need for siege tank support.
The hydralisk is a zerg evolution of the slothien. While slothiens were peaceful herbivores, the hydralisk is noted as being one of the most fierce and sadistic of the zerg strains. The average hydralisk in 2499 was 5.4m long and weighed 390 kg. Since hydralisks move relatively slowly over open terrain, it is common for hydralisks to burrow and await their prey to enter killing range before attacking, destroying their enemies in a deadly crossfire. Despite their relatively sluggish nature, hydralisks can climb vertical surfaces and continued evolution of the strain through muscular augmentation has resulted in faster hydralisks. Hydralisks are sometimes supported by infestors.
You can download this game papercraft here: StarCraft 2 - Zerg Hydralisk Free Paper Model Download