By Alex · Windows
Coming soon · Coming soonAs darkness deepens and monsters emerge from their shadowed dens, the fate of humanity hangs by a thread. Take command of the last bastion! Build cunning traps, merge towers, choose unique upgrade cards, and level up your defenders. Can you hold the walls against dragons and their hordes?
DESCRIPTION SUPPLIED BY THE DEVELOPER THROUGH STEAMScreenshots supplied by Alex through Steam.
Check the official page for current availability, supported devices and any in-game purchases.
Steam edition · Researched Nov 4, 2026 · Guide updated Nov 4, 2026.
You can increase the level and power of your defensive structures by utilizing the tower merging mechanic. This involves combining two identical towers you have already placed to create a more effective unit for your citadel's defense.
Based on source 1.
Before each wave, you are presented with three unique upgrade cards. It is suggested that you carefully weigh your current needs, such as gold, magical spells, or free traps, as your choice will directly influence your tactical options for the upcoming battle.
Based on source 1.
When fighting bosses, focus your efforts on defeating the leader first. Doing so can demoralize the enemy army, potentially causing the remaining reinforcements to waver and flee, which can significantly turn the tide of a difficult defensive encounter.
Based on source 1.
AI-assisted research with automated evidence and consistency checks. Good Game Daily organizes publisher information into practical answers. Guidance is an editorial interpretation of those sources. These notes are based on source research rather than a firsthand playtest; editions and later updates may differ.
For Main Bastion · Steam edition.
Decision guide updated 2026-10-29. Based on the publisher listing checked 2026-11-04; this is not a firsthand review.
The full game and its demo may have different availability. Prices are a US storefront snapshot. DLC and in-game purchases may cost extra.
Steam source ↗ · Checked Nov 4, 2026. Platform editions may differ in features, prices and save compatibility.
▶ Watch the official trailer on Steam ↗Minimum: OS: Windows 10 Processor: Intel Core I3 Memory: 4 GB RAM DirectX: Version 11 Storage: 2 GB available space Additional Notes: 16:9 screen aspect ratio recommended
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