ARK: Survival Evolved

ARK: Survival Evolved

3,783 ratings
Castles, Keeps, and Forts: Science Fiction
Content Types: Mod, Structures
File Size
137.509 MB
Jun 6, 2020 @ 2:48am
Jan 26, 2021 @ 12:03pm
6 Change Notes ( view )

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Castles, Keeps, and Forts: Science Fiction


Mod ID:
Publicly Released:

This mod will work on any and all maps.

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Structure Memory Optimisations
This mod is fully compatible with -structurememopts

Over 75 versatile building parts
Multiple Cosmetic Variants
Stackable Foundations
Corner Pillars
Full Colour Customisation on Parts and Regions
Enhanced Snapping
Vanilla Snap Compatible
True no collision on placement.c
Adobe Cooling on all parts

Currently Included;
1 full structure tier
-> Composite Tier = Metal equivalent

Each building part also features multiple cosmetic variations and all parts and variants can have their colours adjusted.

-> Cosmetic Quick Change Tool to quickly change the look and style of your structure from a distance.
-> Foundations stack, step, and snap from ceilings for easy building on uneven terrain and bridging
-> Ceilings can become foundations via INI
-> Auto opening and closing doors
-> Foundation support radius increased from 2 to 3
-> This mod is 100% stack-able and does not require priority

INI settings for GameUserSettings.ini
*These are not required unless you wish to change them from the defaults listed below;


**If you are running CKF:R and CKF:SF both INI configs can be placed under the same header.

A more in-depth explanation of INI-settings and values can be found pinned to the discussion board.

Mod Summary

CKF:SF takes the building experience of CKFR structure mods and mixes it in with a grounded Sci Fi art style. With over 75 parts included in the release build with many more planned in future content updates, combined with the enhanced remastered CKF snap system. Users will be able to build to the limits of their imagination.

Enhanced snap system;
Walls now snap side to side, as do the roofs and even around corners, leading to a more enjoyable building experience, greater structural integrity and more ways for you to realise your epic builds.

All the parts in CKF:SF are full colour adjustable colour adjustable with multiple static mesh variants within the parts to provide even more customisation. All parts are designed to fall within the performance optimisation of vanilla parts, with models and materials made to be within vanilla spec.

This mod will be registered onto the Beacon App shortly after release, to allow users to to more easily add this mods items to spawn beacons on their servers.

*This mod contains building and construction parts, there are currently no decor items within the mod. If you wish to decorate your builds, there is a wide variety of existing decor mods available on the steam workshop such Eco Decor and RP decor. The decor items used in some of the user submitted build images that may be displayed on this mod page above will be found within those decor mods.

CKF Team Members
ExileAcid - Developer
Gimilkhad - Extensive testing, influence upon the direction of the mod and feedback.
eNc - Henrik - Extensive testing, influence upon the direction of the CKFR platform and feedback.

Mod Discord and Support
If you're having an issue you can't figure out or just want to hang out and maybe get some sneak previews of things to come, join our discord by clicking the image below :-)

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Popular Discussions View All (33)
Oct 2 @ 11:29am
Servers Using This Mod
Bulk Biceps
Aug 7 @ 3:34pm
Suggestion / Help?
Jan 7 @ 11:12am
Could we get greenhouse effect on the composite glass structures?
< >
CM Gabriel Angelos Sep 4 @ 3:55am 
so why is there no composite giant gate? like the giant gate that the masonry have
[CRSDR]Influx Sep 3 @ 11:04am 
question so is there any way to change the base color of the buildings i place. because i want to be able to place the foundations and it ato change the color to the same as all the foundations.
Joker Sep 3 @ 9:54am 
I still haven't located the composite wide pillar anywhere in the standard building in game, but if I enable creative mode, it appears. My solution for now was just to spawn a bunch in and slap em in a chest for use later, donno if I'm just missing where one would craft it (it's 100% not on the same table as everything else) but it sure seems the recipe is missing from the actual table after learning the engram.

And this pillar looks AMAZING, as does the entire mod.
Gimilkhad Sep 3 @ 9:18am 
For the people having issues with triangle foundations, install Snap Fixer Plus. It will fix them for both CKF Sci-Fi and CKF Remastered.
Joker Aug 21 @ 2:10pm 
Great mod, but the composite wide pillar doesn't show up anywhere at all, can't search for it on the bench after researching, only the other 3 do. Very strange, and it seems to be the ONLY piece missing.
sab0tag3_74 Jul 23 @ 7:06am 
A great addition to the CKF collection... This mod adds so many great new build possibilities. I have always like building with CKF. The pieces look great, snap together perfectly almost every time, which is awesome not having to tear down an entire wall because one piece did not snap perfectly. The structure variations are just the icing on the cake allowing one to even get more creative with their builds. I have not had so fun with building since I got my first Lego set...
Halcyon Jun 26 @ 8:50am 
The Castle and keep pieces are great, but also frustrating. Trying to build a circle is impossible, because after you stack triangles, you get the error sound even thou its green. Its frustrating making 100 of the damn things and then cant go 2 high and no map is flat enough to leave it 1 high
McDoogle Jun 23 @ 3:13pm 
So does this include the Castles, Keeps and Forts remastered content or should I also install that if I want both?
exotrax Jun 17 @ 12:20am 
I try to place workbench in new map FJORDUR but can't, any one know why ?
Zama Jun 15 @ 2:41pm 
no way to have greenhouse effect with glass parts ?