Lock Jam: Block Puzzle

Puzzle In-app purchases Contains ads

Strategize moves, drag keys to proper locks, and clear the board!

Rating: 4.5; 458 ratings
Downloads: 30.2K+; on Google Play
Price: Free; In-app purchases
Updated: Aug 21; 2026 · v1.2.4

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Screenshots

About Lock Jam: Block Puzzle

Lock Jam is a puzzle game where you drag keys through a board, matching them to their same-colored lock, but watch out! Keys block each other’s paths, forcing you to strategize every move.

How to Play:
Drag & Decode: Slide keys through the grid to reach their matching locks. No overlaps allowed, plan wisely!
Match to Unlock: Connect each key to its color-coded lock to clear the board. One wrong move? Time to backtrack!
Think Ahead: Tackle escalating challenges from simple 4x4 grids to mind-bending 8x8 mazes.

What’s new

Version 1.2.4 · Updated August 21, 2026

Introducing biggest update so far, thank you for playing Lock Jam - A lot of new, fun & unique levels - Brand new ladder system & rewards! - New Weekly quests for more rewards! - Bug fix, increased smoothness

Play today's Sudoku puzzle

A quick 6×6 Sudoku every day; levels grow to the classic 9×9. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.

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User reviews

A. Carman

only on 10th level. fun game. not super hard but not frustrating to play. timer is sometimes hard to deal with. no glitches so far.

Joyce Brown

love the game

Jayson Hamilton

A lot of fun

Annabel C. Ramirez

the difference in color a puzzle

App details

Lock Jam: Block Puzzle is a free Puzzle app for Android with 10,000+ installs on Google Play and a 4.5/5 average rating from 458 ratings. It was released on April 18, 2025 and last updated on August 21, 2026. It requires Android 8.0 or later. The app contains ads and offers in-app purchases.

Category: Puzzle
Rating: 4.5 / 5 (458)
Installs: 30,249
In-app purchases: Yes
Ads: Contains ads
Version: 1.2.4
Requires Android: 8.0
Content rating: Everyone
Released: April 18, 2025
Last updated: August 21, 2026

View on Google Play

Listing score

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Grade A

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Number of ratings (458): More ratings make the average more convincing.

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Alternatives to Lock Jam: Block Puzzle

Looking for apps like Lock Jam: Block Puzzle? Here are 6 similar Android apps on Google Play. The highest rated is My Safe Prison: Epic Guardian (4.5/5), and all 6 are free to download.

Lock Jam: Block Puzzle vs. alternatives
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