Free demo on Steam
Stronghold 4 Demo: What's In It and How to Play
Yes, there is a free Stronghold 4 demo on Steam, and it has grown twice since June: Free Build with invasions on October 8, then Skirmish against three CPU lords on October 19. Tick off the 11 things to try below.
Last updated Game version: Pre-launch (demo and official info, October 2026)
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What is in the Stronghold 4 demo
Firefly's support page describes the current demo as a tutorial mission, a Free Build map with invasions and an early look at Skirmish with some familiar faces. It was one of the most played demos of Steam Next Fest in October 2026. Here is what each version added:
- First public demo (June 23, 2026): Two missions: an economic mission, Rebuilding the Town, where you help Sir Longarm rebuild Bruckdale, and a military mission, The Mountain Fortress, where you hold a castle through a series of sieges.
- Free Build demo (October 8, 2026): Free Build on the largest map so far, a late-game unit called the Captain, moats for defence, and wool and weaving production chains.
- Skirmish update (Steam Next Fest) (October 19, 2026): Skirmish mode: a deathmatch against three CPU opponents, Penryn, The Snake and Sir Longarm.
Free Build: the largest map so far
Free Build lets you build a castle piece by piece without a mission goal, on the largest map Firefly has shown, and then test it against invasions. It is the best place to try the new things: dig a moat in front of your walls, set up the wool and weaving production chains, recruit the Captain (a powerful late-game unit that is new in Stronghold 4), and watch the weather. Firefly says snow hinders crop growth and heavy rain reduces archery range, so a winter can cost you food and a storm can blunt your bowmen.
Planning your first castle? The Stronghold 4 buildings page has the wood cost of each farm and workshop and the food chains from farm to table, and the Stronghold 4 units page prices your army in gold, honor and weapons.
Skirmish: Penryn, The Snake and Sir Longarm
The Skirmish update is a deathmatch against three CPU opponents. Penryn is the shepherd who becomes the hero of the new campaign; The Snake and Sir Longarm are characters series fans know from earlier games. The full game launches with eight CPU lords, so five more will appear on December 7.
How to download and start it
- Open the Stronghold 4 Steam page.
- Click Download Stronghold 4 Demo, next to the wishlist button.
- Steam adds Stronghold 4 Demo to your library; install it and press Play.
- If it crashes while loading, update your graphics driver and pick the DirectX 11 option in Steam's launch options.
Crashing, out of video memory or stuck? Our Stronghold 4 demo problems page lists every known problem with its fix.
The demo uses the same system requirements as the game: 16 GB of RAM and a GTX 1060 at minimum. Check yours with our Stronghold 4 spec checker. There is no Mac version (see Stronghold 4 platforms), and the demo has no online multiplayer (see Stronghold 4 multiplayer).
After the demo
The full game unlocks in Early Access on December 7, 2026; our Stronghold 4 release countdown shows how many days are left, and the Early Access tracker lists what arrives then and what waits for 1.0. Firefly asks demo players to use the feedback form inside the demo.
Questions
Is there a Stronghold 4 demo?
Yes. A free demo is on the Stronghold 4 Steam store page. It has a tutorial mission, a Free Build map with invasions and Skirmish against three CPU lords.
How do I download the Stronghold 4 demo?
Open the Stronghold 4 page on Steam and click the Download Stronghold 4 Demo button next to the wishlist button. The demo installs like a separate game in your Steam library.
Who can you fight in the Stronghold 4 demo Skirmish?
Three CPU opponents: Penryn, the hero of the new campaign, and the series regulars The Snake and Sir Longarm. The full game has eight CPU lords at launch.
Is the Stronghold 4 demo still available?
Yes. Firefly has kept the demo up since June 2026 and updated it twice in October, with Free Build on October 8 and Skirmish on October 19.
Can I play the Stronghold 4 demo on Mac?
No. Firefly says the demo is built for Windows and does not support macOS, virtual machines or translation layers such as Parallels or Wine.
Does my demo progress carry over to the full game?
Firefly has not said that it does. Treat the demo as a separate test version.
What if the Stronghold 4 demo crashes?
If the game crashes while loading, Firefly's support page suggests updating your graphics driver and starting the game with the DirectX 11 option (Steam Library, right-click the game, Properties, General, Launch Options).
Official sources
- Steam store page: Stronghold 4
- Firefly on Steam: Stronghold 4 releases on December 7th 2026 (October 8, 2026)
- Firefly on Steam: Skirmish Mode Demo Update (October 19, 2026)
- Firefly on Steam: The Stronghold 4 Public Demo is now live (June 23, 2026)
- Firefly support: Can I play the demo on Mac?
Last checked October 28, 2026. Before launch this page follows Firefly's own description and the demo; after launch we add what is confirmed in the game.
Continue reading
Next stepDemo running slowly? Check your PC against the official specs.Can I Run It?Pick your Windows, RAM, graphics memory and drive, and see line by line whether your PC meets the minimum or recommended specs.Go there Related pages
Demo fixesStronghold 4 Demo Problems: Crashes and FixesCrashes on loading, out of video memory, Mac, Linux and Steam Deck, frozen matches and saving: every known demo problem and its fix.
Building calculatorBuildings and Food ChainsWood and workers for each building, the food chains from farm to table, and a calculator for your build.
Army calculatorUnits and Army CalculatorEvery unit from the demo with its cost in gold, honor and weapons, and a calculator for what your army will cost.