Let us start by correcting the most natural assumption, mine included: you do not pick a side between the CIA and the KGB. The Syndicate Classified Operations does not put you in charge of an existing agency. It has you build your own network, starting from a single city, until your desk controls a global spy apparatus. The Cold War is the setting and the ambient pressure, not the uniform you wear.
Which, incidentally, is considerably more worrying for your sleep than the version you had in mind.

Let us put the word down straight away, because it changes everything: this is an incremental game. Not a narrative management game in the vein of Papers Please, not a tactics game like Phantom Doctrine. You launch operations, gather resources, unlock cities, automate your agents, invest in upgrades, and the curve climbs.
The studio, A and I Software, does claim it is more than watching numbers go up. There are 465 upgrades to unlock, three escalating stages that each add new systems, and a fully voiced campaign with an original soundtrack. All of it produced by a solo Filipino developer, which makes the announced scope genuinely impressive.
If you know what the word incremental does to a brain that likes charts going up, you already know why I am talking to you about sleep.
A pure incremental always ends up spinning in place. Here the counterweight is called Heat. Every city generates it as you operate there, so you constantly have to arbitrate between growth, automation and discretion, before the situation turns against you.
On top of that come the crises of the era, which exist to break your plans: blackouts, lockdowns, riots, enemy operations, and even nuclear launches. You have to react fast, restore control, and not lose momentum. It is that tension between expansion and overheating that will decide whether the game holds for more than three hours or keeps you for weeks.

The central question is the one every incremental faces: the balance of the curve. Too generous and the game becomes a reward dispenser with nothing at stake. Too stingy and you are left watching a bar fill up. The Heat mechanic is the right idea to avoid that, provided it actually bites instead of sitting there as a decorative counter.
Second reservation, the voiced content. A fully voiced campaign from a solo developer is ambitious, and solo ambition sometimes gets paid for in polish. To be checked.
The game is already available on PC, released yesterday. Consider yourself warned: it does not ask for much attention at once, only for all of your evenings.
