CPU: 2.0 GHz Core i5
RAM: 2 GB
GPU: Mid-range nVidia GeForce 3x0, AMD Radeon HD 5x00
CPU: 2.0 GHz Core i7
RAM: 4 GB
GPU: High-end nVidia GeForce 5x0, AMD Radeon HD 6x00
Testing was done on system with 3.5GHz Core i7, 32GB RAM, AMD Radeon HD 6870 in 2560x1600 resolution. Download size is slightly above 2GB, decompressed on hard drive game will take around 5GB.
As other games based on HPL engine, you can set almost everything from launcher and few additional effects can be set directly from game menus. However a lot of effects and settings require restart of the game so it is best to use launcher.
Launcher offers three basic presets - Low, Medium and High. Unfortunately High preset does not set everything on max and you will have to manually set it if you want the best graphical settings. During first launch the game will choose the best preset for your system.
Field of view
Every first or third person perspective game should have customizable field of view, unfortunately A Machine for Pigs does not have FoV slider in menu. This can cause problems on setups with large screens and multi-monitor setups. I personally prefer FoV around 100 on my system but I didn't mind preset field of view in this game.
Fortunately, for those who cannot be the default cramped FoV, it can be customised using a configuration file fix that also happens to work with Amnesia: The Dark Descent. Here are the instructions:
1. Navigate to config folder within game install location (C:\Program Files (x86)\Steam\steamapps\common\Machine for Pigs\config\ for example)
2. Open game.cfg in text editor
3. Locate line FOV = "70" in section Player_General and change its value to your desired field of view value.
[compimg]http://community.pcgamingwiki.com/uploads/gallery/album_10/med_gallery_1_10_7682.jpg|http://community.pcgamingwiki.com/uploads/gallery/album_10/med_gallery_1_10_31028.jpg|864|540|FoV: 70 (default)|FoV: 100[/compimg]
Game features anti-aliasing which can be only switched on or off, it is not however post-process AA that just blurs everything (FXAA). It is proper edge smoothing solution and can be found in menu under "Smoothing" check box under Misc section. This form of AA is very dependent on angle of the edge so its effectiveness will vary. See screenshots for comparison - detail is enlarged 4x with nearest neighbor algorithm to prevent additional blurring.
Anti-aliasing is performance demanding effect and require considerable amount of resources. Unfortunately the game has frame rate limiter set on your refresh rate so I can't tell you precisely fps drop. Without AA set on, my system could run the game on steady 60 FPS, GPU utilization was 60% on average. With AA turn on, my FPS droped to 55 and GPU utilization rose to 95-100%. So in conclusion AA will eat roughly 40-50% of your GPU power.
[compimg]http://community.pcgamingwiki.com/uploads/gallery/album_10/gallery_1_10_24864.png|http://community.pcgamingwiki.com/uploads/gallery/album_10/gallery_1_10_12075.png|568|568|Anti-aliasing: Off|Anti-aliasing: On[/compimg]
As its predecessor, A Machine for Pigs is using screen space ambient occlusion effect. This effect will have drastic performance impact but you can set its properties and tweak it for your system. You can set resolution to Medium or High which will soften ambient occlusion shadows with massive frame rate drop. On my system switching from normal to high cut framerate in half with not very noticeable visual upgrade. Then there is a setting for amount of samples that engine will need to create shadows. More samples means more precise shadows and less dark glow around objects. See screenshots for comparison.
[compimg]http://community.pcgamingwiki.com/uploads/gallery/album_10/med_gallery_1_10_12580.jpg|http://community.pcgamingwiki.com/uploads/gallery/album_10/med_gallery_1_10_31792.jpg|864|540|Ambient occlusion: 4 Medium|Ambient occlusion: 32 High[/compimg]
Apart from anti-aliasing and ambient occlusion the game runs smoothly and it is properly optimized. The game only uses a single thread so any dual-core CPU should be able to run it without problems despite requirements claims about i5 as minimum CPU. In RAM the game didn't exceed 700MB so specs are on par with my measurement. As for graphic memory A Machine for Pigs takes around 700MB of VRAM with AA and AO off on High preset. AA and AO are memory hungry features and you'll need more than 1GB of VRAM to use them effectively.
Here is a graph of framerates on default presets and High preset with two most demanding features turned off:
Basic control settings are present, you can turn off mouse smoothing, invert mouse and set sensitivity. This is the first game that I remember that I had to increase mouse sensitivity instead of put it immediately all the way to the left. Mouse acceleration cannot be set but is taken from your system settings. Gamepads are supported and Xbox 360 controller works fairly well. During first part of the game there are tutorial hints that shows both control schemes. Keyboard can be rebinded easily and for one action you can set two keys.
Sound tab under Options menu hide very basic settings and you can set only master volume and sound device. Subtitles and language settings are under Game tab. To my surprise surround sound is not supported by default. This is because of HPL2 engine and first Amnesia had the same problem - the game is using old implementation of OpenAL sound system. Luckily there is a fix:
1. Download OpenAL
2. Extract archive on your hard drive, locate file soft_oal.dll under Win32 folder
3. Copy said file to game folder
4. enter game launcher, navigate to Sound tab and select "Unsupported" device
For troubleshooting and additional info follow wiki article about this issue.
Apart from surround sound issue I haven't encountered any other technical problems with the game. Some effects are very performance demanding but that is expected due to nature of these effects. If you turn them off, game runs smoothly and should run fine on most mainstream PCs.
Port Reports are a new series of quick first impressions of the technical aspects of a PC game. This report was written by PCGamingWiki contributor LDK. For an up to date account of Amnesia: A Machine for Pigs's fixes and improvements, please visit its respective PCGamingWiki article.
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