Below the Surface: Assassin's Prison
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About Below the Surface: Assassin's Prison
Below the Surface: Assassin's Prison is a mystery and deduction game, and the second entry in the Guian series. You play detective Chen, sent to investigate two prisoner deaths at a mysterious prison in M City and uncover the truth behind the cases.
Investigate the prison
The deaths occurred three days apart, on April 20, 2001. One prisoner died from blood loss after a sharp object pierced his left lung; the estimated time of death was within the previous eight hours. The other had clear marks around his neck but no other obvious injuries. The initial assessment was mechanical asphyxiation, with death estimated to have occurred 10 to 12 hours earlier.
A search of the prison found a bloodstained knife in the cell of prisoner 16207, who was considered a major suspect and placed in solitary confinement while awaiting police investigation and questioning. Chen arrives on the orders of a superior to investigate the killings.
Examine the evidence
You move around the prison, inspect objects and collect evidence. Each piece can be examined in detail, and you can connect one or more pieces of evidence to develop your deductions and reach the truth. The prison also contains puzzles that you must solve to make progress.
Frequently asked questions
The best price for Below the Surface: Assassin's Prison is $0.32 at Kinguin. That is 67% less than on Steam, where it costs $0.99. 4 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Below the Surface: Assassin's Prison stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Below the Surface: Assassin's Prison are: Windows 10, Intel Core i3-2100, 4 GB RAM, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Below the Surface: Assassin's Prison is a single-player game.
Yes. Below the Surface: Assassin's Prison is the full base game. You need nothing else to play it.
Buy Below the Surface: Assassin's Prison 67% cheaper than on Steam.
Below the Surface: Assassin's Prison is available for 67% less in shops such as Kinguin or Gamivo.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











