Game artwork from the official Steam store; rights belong to the respective publisher.
Base game (Steam) · PC
GB · GBP · Steam
Price observed in the GB store. A Steam account is required. Check the store for package contents, operating-system support and regional purchase restrictions.
Base game (Steam) · PC
BR · BRL · Steam
Price observed in the BR store. A Steam account is required. Check the store for package contents, operating-system support and regional purchase restrictions.
Castle of Alchemists is an action-RPG and tower defence hybrid where you take on the role of Bellator, an alchemically enhanced super soldier and fight against relentless hordes of enemies from other worlds.
Craft items with randomised abilities that only a super soldier can wield, lay down deadly traps and build towers, mutate and advance to your perfection.
Crush hordes of enemies as you reclaim the castle from the invaders piece by piece. If they come by the thousands, by the thousands they shall fall.
Battle and defeat thousands of invaders from different factions with unique abilities, from a selection of more than 2 dozens of enemies.
Craft an arsenal of weapons and items with randomised properties.
Mutate and hone your skills through detailed skill trees.
Number of traps and towers, each with a range of variants.
Apply more than 10 conditions to enemies—slow them, stun them, burn them, freeze them, and more.
Official store excerpt · Description source ↗
Read the store description ↗
Base game
No other base game is required.
Activation: Steam
A Steam account is required.
Supported platforms: Windows
Official GB Steam product record; other regions are checked separately.
Checked:
Supports: Steam appdetails type=game identifies this standalone base-game app, Product name and explicitly listed operating systems
GB / GBP · Steam · This exact edition and purchase conditions only.
One recorded observation. Not enough data to show a price trend.
GBP 5.11 lowest in the displayed observations, from Oct 21, 2026, 06:41 PM UTC to Oct 21, 2026, 06:41 PM UTC.
| Observed at (UTC) | Price |
|---|---|
| Oct 21, 2026, 06:41 PM UTC | GBP 5.11 |
BR / BRL · Steam · This exact edition and purchase conditions only.
One recorded observation. Not enough data to show a price trend.
BRL 18.79 lowest in the displayed observations, from Oct 21, 2026, 05:39 PM UTC to Oct 21, 2026, 05:39 PM UTC.
| Observed at (UTC) | Price |
|---|---|
| Oct 21, 2026, 05:39 PM UTC | BRL 18.79 |