Goods Sort Master: a mobile puzzle with 350+ levels, monetization, and progressive difficulty

Project highlights

Casual puzzles keep players engaged when difficulty rises smoothly and meta-progression (rooms, skills, décor) gives a long-term goal. The team built Goods Sort Master — a SpriteKit iOS game where players sort goods on shelves and match three in a row across eight themed rooms, from bathroom to gym. Progression includes multi-layer shelves, dynamic cell freezing, a level timer, and gradual booster unlocks. Monetization is built on in-game stars, lives, StoreKit 2, and Yandex Ads rewarded video; progress syncs with the backend via API.

Challenge

Mobile puzzle games lose players quickly when levels feel repetitive, the economy is unbalanced, or difficulty breaks on new locations. Typical challenges: So the product needed:

• Smooth difficulty progression across 350+ global levels in 8 rooms with different item sets
• Gameplay systems: multi-layer shelves, cell freezing, timer, shelf filling, and boosters unlocked in stages
• F2P model: stars as currency, regenerating lives, IAP packs, and rewarded ads for bonuses
• Meta layer: SwapStation with skills, a memory mini-game, a decoratable main room, and a shop
• Local progress saving and star-balance sync with the server
• App Store compliance: ATT, SKAdNetwork, and correct StoreKit 2 behavior

Our approach

The game is designed as a modular SpriteKit scene with central state and dedicated system managers. We delivered:

Impact

The game became a complete F2P product: from the first bathroom level to advanced bar and gym locations with the full difficulty toolkit. Key capabilities:

• 350+ levels across 8 themed rooms with unique item sets.
• Progressive difficulty: shelf layers, freezing, timer, and filling by relative level.
• 7 boosters with staged unlocks and an economy based on in-game stars.
• Lives with daily reset, regeneration, and IAP purchase.
• StoreKit 2 for stars and lives, Yandex rewarded ads for bonuses without a hard paywall.
• Progress saving, player profile, and currency sync with the backend.

A full casual-game loop was delivered: gameplay, meta-progression, monetization, and release readiness for Apple and ad SDK requirements.

Measurable results

What we learned

In F2P puzzles, alignment of the “global level” with difficulty systems is critical — GameStore, the level generator, and the timer UI must share one progression scale. Modular managers (UI, dialogs, ads, IAP, room selection) let the project grow without bloating GameScene. Monetization works best when rewarded ads and IAP complement each other instead of competing for the same resource.

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