Screw Jam Puzzle is a color-sorting puzzle where each accessible screw must be removed and sent to a matching toolbox. NubiGames tested it in desktop Chrome on September 21, 2026. We completed Levels 1 and 2, observed the board change as screws were removed and checked the reward panels, feature progress, visible boosters and advertising.
Launch and observed advertisements
Play now opened the Playgama frame, followed by Let’s Play!, an initial interstitial and then the Screw Jam Puzzle title screen. The first advertisement promoted “Sunny Cove…” and displayed a PLAY NOW button with a countdown. We closed it without opening its promotional content and then pressed the game’s PLAY button.
Another advertisement appeared after collecting the free 15-coin panel. No advertisement content was clicked, no rewarded-video offer was activated and no real-money purchase was made.
Confirmed screw-sorting rule
The tutorial displayed “FILL TOOLBOXES WITH MATCHING SCREWS.” A single left click on a visible screw head removed that screw from the board and placed it into the corresponding colored box. Purple or blue screws and yellow screws visibly entered matching colored slots.
After some removals, the structure rotated or shifted, changing the visible layout and exposing screws that were not previously accessible. This confirms that progression depends on removing available screws and continuing as the board changes. Double-click, drag-and-drop and right-click were not tested.
Level 1 completed
The first puzzle was played through to completion. Success opened a LEVEL 1 screen, followed by a reward animation and “NEW FEATURE 1/10.” This demonstrated both level completion and the first step of the feature-unlock progress.
The reward panel displayed a free amount of 15 coins. A separate GET video offer showed changing quantities, first 30 and later 45. The optional video was not started. Because the global coin balance was not checked before and after, we report the visible 15-coin reward without claiming that exact amount was confirmed in the account total.
Level 2 completed
Level 2 was started and also finished. Its board included purple or blue and yellow screws with matching boxes. Successive single-click removals filled the corresponding slots, the board disappeared and the reward screen appeared.
The result displayed LEVEL 2 and advanced progress to “NEW FEATURE 2/10.” A free 15-coin panel and a GET 45 video offer were visible. Again, the rewarded offer was left untouched and the total coin counter was not verified.
Boosters and actions not tested
The interface displayed several booster buttons marked with plus signs. Their icons resembled a ring or nut, a hammer, a box and a magnet. None was activated, so their costs, effects and whether they require advertisements or currency remain unknown.
No invalid action was deliberately produced. We did not fill a temporary area, choose a confirmed wrong order or click an inaccessible screw in a way that generated a visible penalty. The conditions for failure, maximum capacity and the consequence of a bad move therefore remain unverified.
Menus and input limits
The two tested puzzles were controlled entirely with single left clicks. Keyboard input, Arrow keys, WASD, Space and Escape were not tested, and no alternative keyboard control is claimed.
Undo, Hint, Skip, extra-slot help, Restart, Shop, Settings, Sound or Music, Pause, daily gifts, themes, skins and a level-selection menu were not opened. Their absence from the tested path does not prove that the game lacks them.
Test limits
The game was observed in a portrait play area inside desktop Chrome. Mobile, touch and fullscreen remain untested. We did not provoke a loss, inspect Retry behavior, verify the total coin balance or use a booster. No developer is attributed because Playgama was only the visible provider and “Published by Kadmin” is not development evidence.
For more tested sorting and logic titles, browse the Puzzle Games collection.
Frequently asked questions
How do you remove a screw?
Click an accessible screw head once. It leaves the board and enters the matching colored toolbox.
Do screw colors matter?
Yes. Purple or blue and yellow screws were visibly routed into boxes with matching colors.
Was Level 1 completed?
Yes. Completion displayed LEVEL 1, a reward animation and NEW FEATURE 1/10.
Was Level 2 completed?
Yes. The second board disappeared after sorting and progress advanced to NEW FEATURE 2/10.
What reward was displayed?
Each tested result showed a free 15-coin panel. The global balance change was not independently verified.
Were the video rewards used?
No. GET offers showing 30 or 45 were visible, but no rewarded video was activated.
