Written by BlueJayAvis
Table of Contents:
1. Screenshots
2. Installing on Windows Pc
3. Installing on Linux
4. System Requirements
5. Game features
6. Reviews
This guide describes how to use Steam Proton to play and run Windows games on your Linux computer. Some games may not work or may break because Steam Proton is still at a very early stage.
1. Activating Steam Proton for Linux:
Proton is integrated into the Steam Client with "Steam Play." To activate proton, go into your steam client and click on Steam in the upper right corner. Then click on settings to open a new window. From here, click on the Steam Play button at the bottom of the panel. Click "Enable Steam Play for Supported Titles."
Alternatively: Go to Steam > Settings > Steam Play and turn on the "Enable Steam Play for Supported Titles" option.
Valve has tested and fixed some Steam titles and you will now be able to play most of them. However, if you want to go further and play titles that even Valve hasn't tested, toggle the "Enable Steam Play for all titles" option.
2. Choose a version
You should use the Steam Proton version recommended by Steam: 3.7-8. This is the most stable version of Steam Proton at the moment.
3. Restart your Steam
After you have successfully activated Steam Proton, click "OK" and Steam will ask you to restart it for the changes to take effect. Restart it. Your computer will now play all of steam's whitelisted games seamlessly.
4. Launch Stardew Valley on Linux:
Before you can use Steam Proton, you must first download the Stardew Valley Windows game from Steam. When you download Stardew Valley for the first time, you will notice that the download size is slightly larger than the size of the game.
This happens because Steam will download your chosen Steam Proton version with this game as well. After the download is complete, simply click the "Play" button.
A solo-developed grand-strategy sandbox where you lead a nation in a dynamic, historically-inspired world.
Of Crowns & Chains is a solo-developed grand-strategy sandbox where every nation, army, and populace is dynamically simulated on a seamless spherical Earth. Lead a nation of your choice in January 1910 and influence the course of your nation and history as time marches onwards.
This game is a project built entirely by a solo developer over the past four months. While the core systems for war, economy, and population are in place and functional, this is an Early Access title with a rudimentary gameplay loop that's still actively being expanded. The game is far from complete and may not yet match the depth or polish of established grand strategy games.
True-Sphere World & Accurate Landmass – No flat-map distortion on a seamless spherical globe. Landmasses are generated from real-world geospatial data, ensuring highly accurate coastlines and islands.

Mass-Scale Tile System – A procedurally generated, cellular-like grid covers only Europe for now. While most of Europe's nations are subdivided by procedural tiles, the provinces of Spain and Portugal are manually drawn to follow precise geographical (rivers), state, and even disputed borders (e.g. Olivenza). With over 42,000 tiles in Europe, the potential for strategic depth is high—Spain alone is comprised of nearly 3,000 tiles.

Nation Selection & Government Types – Choose any European state, from the British Empire to the newly-added Ottoman Empire or the microstates of San Marino and Liechtenstein. Each nation features its historically-accurate government, alliances, and vassals

Dynamic National Treasury & Debt System – Manage your nation's treasury by balancing hourly income from taxes and territory against the massive upkeep costs of your divisions. Running a deficit is a dangerous path. As your nation sinks deeper into debt, you will face increasingly severe penalties. Slight debt will hinder your army's combat effectiveness, but falling into deep debt or even bankruptcy will trigger mass desertions, bleeding your divisions of manpower and risking the collapse of your front lines.

Mass-Scale Unit System – Each unit represents a division (≈20,000 soldiers), with many divisions fitting inside a single tile to deliver a grand sense of warfare.

Realistic Combat System – Engage in protracted battles that can last for months under certain conditions. Defenders dig trenches that decay under assault, while attackers must fight through three distinct phases—Skirmish, Assault, and Breach. Manage division exhaustion and consolidate newly captured territory to solidify your front line.
Dynamic Population & Manpower – Populations grow, age, and decline over time. Casualties directly impact age distribution, while manpower pools adjust as soldiers retire or new recruits become eligible.

Wars, Ceasefires & Alliances – Secure allies, occupy tiles, and declare wars; hostilities can end in ceasefire (peace conferences in-development). Cascading calls-to-arms can pull suzerains, vassals and allies into conflict; tiles can be occupied and liberated.
