
Game Overview
Kilcairn’s gaslit streets turn every locked door, patrolling constable, and aristocratic mansion into an invitation to steal smarter. Thick As Thieves is a stealth-action heist game set in an alternate 1910s Scotland where occult forces sit uneasily beside emerging technology. As a Guild thief chasing valuable relics and dangerous secrets, players work through a compact, shadow-heavy campaign built around observation, misdirection, and clean escapes. The mood recalls classic Thief: tense, grimy, and deliberate, with failure often coming from one careless movement or an overlooked light source.
Heists support solo play or online co-op, letting two specialists cover each other’s blind spots while adapting to a guarded environment. The Spider and the Chameleon offer different talents, while customizable equipment encourages players to plan around distractions, infiltration, sabotage, or a quick retreat. Tools such as light-disabling Slithersap, smoke bombs, and a remote switch-activating Pickpocket Fairy give missions a playful systemic edge: a route that seems impossible can become viable with the right gadget and timing. Sixteen contracts span several mission formats and locations, with escalating difficulty changing patrol patterns and security arrangements rather than merely making enemies tougher.
Its strongest appeal lies in the attempt to make each burglary feel like a problem with multiple answers instead of a prescribed stealth puzzle. A relatively short four-hour story campaign keeps the experience focused, while altered layouts, loadouts, co-op coordination, and higher difficulties provide reasons to revisit completed contracts. Kilcairn’s blend of old-world gothic crime, arcane intrigue, and proto-industrial devices gives it more personality than a standard historical stealth setting. Fans of Thief, Deus Ex, Dishonored, and co-operative sneaking games should find plenty to like, especially if they value careful planning and improvisation over loud combat.
Screenshots
Installation
- Select the Download button at the top of this page to open UploadHaven.
- On UploadHaven, wait for any countdown, then select Free Download. Optional: UploadHaven Pro for faster downloads.
- When complete, extract the archive to a Thick As Thieves folder using 7-Zip.
- Open the extracted folder and start the game normally.
- For errors, check Setup Guide & Troubleshooting below. Keep your security software enabled.
System Requirements
- OS: Windows 10
- Processor: Intel(R) Core(TM) i5-4570 CPU @ 3.2GHz
- Memory: 12 GB RAM
- Graphics: NVIDIA GeForce GTX 1060 6GB+ (or equivalent)
- DirectX: Version 12
- Network: Broadband Internet connection
- Storage: 10 GB available space
- Additional Notes: Requires SSD
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Thick As Thieves (v2026.06.05)?
After extracting Thick As Thieves (v2026.06.05), navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 3.22 GB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Do I need to run the game as administrator?
Usually, no. Start the game normally from the extracted folder. If you see a permissions or save error, check that the folder is writable and follow the game's documented fix. Only grant administrator access when a trusted game's specific setup requires it.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
Check that extraction completed and your PC meets the system requirements, including Version 12. Note any error message before choosing a fix. If it identifies a missing runtime, install the required DirectX components or Microsoft Visual C++ Redistributable from Microsoft.
My antivirus is blocking the game — is it safe?
A warning needs to be investigated; the download source alone cannot confirm that a file is safe. Keep your security software enabled and review the detection details. Do not run or restore a flagged file unless you have verified that it is a false positive. If you are unsure, leave it quarantined.