Objective & controls
Read the target configuration, make legal linked moves and place every required piece correctly at the same time.
Puzzle01 / 20
Moves0
Par—
Run score0
Rank—
Arrow keys / WASD / swipeAlign every color
The ruleOne command moves every piece. Every solved level immediately adds to your cumulative run score.
The catchYou do not need to finish all 20 levels to rank. Your highest reached level and score up to that point are saved.
Global leaderboardHighest level · highest cumulative score
Guest playSolve a puzzle, then sign in to save it.
Sign inHow to play Lockstep
Lockstep is a constrained movement puzzle where one decision affects multiple pieces and move order determines whether the target remains reachable. Play instantly in your browser—no download is required.
How scoring works
Solved levels and progress are recorded; better planning reduces wasted moves and failed configurations.
Strategy
Work backwards from the target. Identify spaces that must remain available late and avoid occupying them too early.
How difficulty grows
Later puzzles create tighter dependencies between pieces, so preserving future legal moves becomes the central challenge
More games like Lockstep
Try another Small Games title that exercises a related skill.
Try the Daily ChallengeOne official challenge each day. Play the same challenge as everyone else and compare your result.
Play today’s challenge →Improving at Lockstep
The useful way to improve is to understand what the game is measuring. In Lockstep, the important pressure comes from Later puzzles create tighter dependencies between pieces, so preserving future legal moves becomes the central challenge. That means repeat runs are not only attempts at a better number: they are opportunities to recognize the decisions that create that number. Use the strategy above as a starting point, then compare your own runs and identify where time, accuracy, moves or survival are being lost.
Small Games keeps the rules visible because a leaderboard is only useful when players understand what is being compared. Read how scoring and verified results work, browse the complete Game Guides, or learn how Small Games is designed.
Frequently asked questions
Can I play Lockstep for free?
Yes. Lockstep is free to play in the browser on Small Games and does not require an app download.
Do I need an account?
No. You can play as a guest. Sign in when you want eligible results, personal bests and competition progress associated with your profile.
Can I challenge someone else?
Yes. Use the Share or result-sharing controls to send a Small Games link or challenge. The recipient can open the game and compare the result where supported.
What should I play next?
Use the related games above, browse game categories, or play the Daily Challenge.