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Build your team, collect equipment, potions, gems, choose upgrade rewards, and withstand wave after wave of enemy attacks.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Choose your favorite hero from the lost history, form a team of up to 10 people, and place them on the battlefield.
Heroes will automatically attack and release skills, you just need to position them.
Collect battlefield drops, spoils of war that have been worn on enemies. If you defeat them, you will receive one of them.
Equipment with random affixes, selected and properly matched, can enable heroes to unleash greater combat power.
Potions have powerful effects that can enhance a hero's combat power, revive them from the brink of death, or increase their lethality. Some potions also have negative effects that may kill your hero.
Gems are used to increase the skill level of heroes and can be obtained on advanced battlefields.
Heroes who defeat enemies will receive temporary level gains, and choosing the appropriate gain can significantly enhance their combat effectiveness.
Okay, you're ready to enter the battlefield now. The sinking world is waiting for you to save.
This is a simple tower defense game.
Lowest tracked price: CA$3.89 (Jul 7, 2026) · current best: CA$3.89.
100% positive reviews all-time.
Right now the cheapest offer for The Fourth Anno is CA$3.89 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for The Fourth Anno is CA$3.89 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when The Fourth Anno drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
