Sensitive category or subject. Aggregated from public sources, for information only, not a recommendation at all. .

Report updated Apr 18, 2026

Overview · Full Intel report in progress

Days Bygone: Castle Defense is an established games app that is free with in-app purchases. With a 4.7/5 rating from 67.7K reviews, it shows polarized user reception.

What is Days Bygone: Castle Defense?

Days Bygone: Castle Defense is an endless idle defense game where players protect their castle from waves of enemies by upgrading stats, spells, and skills. The game features a progression system based on grinding for Gold and Elixir, supported by offline idle gains and diverse content like hero summoning and weapon discovery.

Current Momentum

v2.9 · 1w ago

Intense

Last updated 9d ago. 5 versions tracked.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Games

No ranking data

ActionGrossing

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

What Are The Key Features?

Idle ProgressionStandard

Players continue to accumulate resources and make progress even while offline.

Strategic UpgradesStandard

Users can enhance their defense through 8+ stat upgrades, 15+ spells, and 25+ unique skills.

Hero and Weapon CollectionStandard

The game includes 20+ unique weapons to discover and 20+ loyal heroes to summon for combat support.

Varied Game ModesStandard

Content includes specialized modes such as Dungeon Defense to obtain keys and additional epic adventures.

How much does it cost?

Freemium

Who Built It?

Frivolition app icon

Providing endless idle defense gameplay for casual gamers. Focused on simple, tap-based progression mechanics.

Portfolio

1

Apps

Explore the full Frivolition report

Portfolio breakdown, audience, momentum, and every app published by Frivolition.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

Analysis in progress, available soon

What is the competitive landscape for Days Bygone: Castle Defense?

How's The Games Market?

How does it evolve in the Games market?

Rank progression

90 active rankings tracked — 30-day window

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Days Bygone: Castle Defense

Key Takeaways

This title succeeds as a grind-heavy idle game that rewards consistent play with deep, incremental build customization.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Days Bygone: Castle Defense, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Days Bygone: Castle Defense Intelligence Report.” Updated Apr 18, 2026. https://marlvel.ai/apps/days-bygone-castle-defense

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Data licensed under CC-BY-NC 4.0