---
title: "Days Bygone: Castle Defense — App Overview"
url: https://marlvel.ai/intel-report/games/days-bygone-castle-defense
category: Games
developer: Frivolition
platforms: ios, android
rating: 4.7 (65.3K ratings)
pricing: freemium
report_level: overview
generated: 2026-04-18
last_verified: "2026-04-18T10:52:22.526Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This title succeeds as a grind-heavy idle game that rewards consistent play with deep, incremental build customization.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Games |
| Rating | 4.7 ★ (65.3K) |
| Pricing | freemium |
| Platforms | iOS, Android |
| Latest Version (iOS) | 2.9.1 |
| Latest Version (Android) | 2.9.1 |
| Developer | Frivolition |

<!-- SECTION: Summary -->
## 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.

<!-- SECTION: Key Features -->
## Key Features

- **Idle Progression**: Players continue to accumulate resources and make progress even while offline.
- **Strategic Upgrades**: Users can enhance their defense through 8+ stat upgrades, 15+ spells, and 25+ unique skills.
- **Hero and Weapon Collection**: The game includes 20+ unique weapons to discover and 20+ loyal heroes to summon for combat support.
- **Varied Game Modes**: Content includes specialized modes such as Dungeon Defense to obtain keys and additional epic adventures.

<!-- SECTION: Target Audience -->
## Who is it for?

Casual gamers who enjoy incremental progression, build crafting, and idle defense mechanics.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/days-bygone-castle-defense/id1479517439?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.frivolition.daysbygone&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/games/days-bygone-castle-defense)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/games/days-bygone-castle-defense).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*