If you prefer the standard mobile version, Ironhide Game Studio frequently runs seasonal promotional events. During these sales, premium heroes and content bundles are heavily discounted, allowing you to support the developers safely and legally for a fraction of the standard price.
Premium features
: Reviewers note that Frontiers is roughly 2–3 times harder than the first game, especially once you hit the jungle and pirate levels. Recommendation For the safest and most balanced experience, the Steam version If you prefer the standard mobile version, Ironhide
If you are a returning veteran who has already paid for Frontiers twice (Steam + iOS) and simply wants to mess around with a maxed-out Karkinos on Impossible difficulty, the release is a technical marvel. It preserves the original’s difficulty curve while removing the grind.
(KRF) is widely regarded as the high-water mark of the classic tower defense genre, praised for its refined balance and diverse roster of legendary champions. While the mobile version typically limits players to four free heroes (Alric, Mirage, Cronan, and Bruxa), the concept of a "premium" experience often refers to versions where the entire roster of 16 heroes is accessible without additional in-app purchases. The Steam Advantage Recommendation For the safest and most balanced experience,
If you are looking for the most effective heroes to use once unlocked:
The changes the fundamental dynamic of the game. It transforms a patient grind into an immediate tactical sandbox. It strips away the paywalls and energy timers, leaving behind nothing but pure, strategic bliss. While the mobile version typically limits players to
A skeletal dragon whose plague-based abilities melt high-health targets over time.
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This ensures that the player experiences the game as the developers intended after years of community feedback—a polished, balanced, and content-rich package.
For players who want all heroes available immediately without grinding levels, you can edit your local save files on PC: