It takes around 50 60 hours to unlock all of the achievements in the base game on xbox 360. And then we doubled it.

Dead Space 3 Mega Guide Tips Secrets Unlockables Glitches
Dead space 3 weapon tier list. Avoid using the stasis module on explosive weapons if you are not using safe guard the stasis effect will also apply on you from your own shots. There are two special power weapons that you can unlock. These improvised weapons have a far more devastating effect on the necromorphs than bullets due to. Dead space weapons guide best to worst weapons 1 the pulse rifle this is the best weapon in the game. 10 dismember 1000 limbs from living enemies architect. Complete the game in classic mode.
There are two special power weapons that you can unlock. Dot stops knock back effects when it ticks like the force gun so avoid using these mods on crowd control weapons the stasis moule is designed for them. Epic tier 4 engineer 40 complete the game in classic mode from the jaws. Epic tier 4 engineer. When fully upgraded the pulse rifle does 1575 9 x 175 damage per clip. Here is the complete list of unlockable trophies in dead space 3 on the ps3.
Although they are not weapons in the traditional sense the mining tools acquired over the course of his time on the ship serve him better than would most conventional weaponry. For dead space 2 on the xbox 360 a gamefaqs message board topic titled weapons tier list page 4. Dead space 3 achievements. This is an extremely powerful weapon in dead space 3 and arguably one of the hardest unlockables in the game. Full list of all 58 dead space 3 achievements worth 1250 gamerscore. Dead space 3 is hardly a perfect game but it definitely took the series in some unexpected directions not all of which are badco op is the most obviousand also the bestaddition by far.
Thats pretty insane when you compare it to the line gun which only does 243 27 x 9 damage. The following are all the weapons that isaac and the survivors in the dead space series can use throughout the game. Dead space 3 achievements trophies list. For dead space 3 on the xbox 360 a gamefaqs message board topic titled weapon tier list. Dead space 3 achievements list. Devil horns aka foam finger which becomes available after completing classic mode.
Epic tier 4 engineer silver complete the game in classic mode from the jaws.