A direction, still taking shape
Proposed online challenges whose applications are not open and rules are not final.
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Challenges guide
Start with a
worthwhile problem.
Explore longer partner briefs, milestones, mentor feedback, and final demos; the current briefs are in development and applications are not open.
How it works
A real problem. Room to explore.
A direction, still taking shape
Start with one real problem
You will start with a specific problem and the people living with it, exploring a useful direction rather than a fixed answer.
Get a clear brief
Use a clear brief to focus your team on a good question worth exploring.
Explore with your team
You will try ideas together online and share the work with the people you are building for.
Learn through feedback
Use milestones and mentor feedback to test your direction and improve the work.
Show a working idea
You will demo a working prototype and explain user feedback, changes, and limitations.
Get ready
Get ready to take part.
Choose your direction
Choose your direction
Explore the starting points while the briefs take shape; applications are not open yet.
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Explore everyday work
Make one real workflow easier with AI while showing the improvement and keeping users in control.
Read the AI preview
Explore climate resilience
Turn reliable climate information into a useful local decision while accounting for uncertainty, language, connectivity, and access.
Read the climate preview
Explore better money products
Prototype clearer everyday finances with synthetic data or a sandbox, explaining permissions, risks, and limits.
Read the money preview
Find complementary perspectives
Bring together technical, design, research, and firsthand knowledge of the problem.
Prepare questions, then a prototype
Record who needs help, what you want to test, your sources, feedback, and limitations.
Join updates for now
Join updates to hear when details are ready; this is not an application or a reserved place.
Join challenge updatesFor partners
Set a challenge with us.
Bring a worthwhile problem
Bring a worthwhile problem
Shape a brief with Build54 around a real problem your organisation wants solved.
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Shape a clear brief
Shape a clear question and direction for builders together with Build54.
Give exploration room
Give teams time to investigate, try ideas, and develop an approach.
Support milestones and feedback
Support teams through milestones and mentor feedback as the work develops.
Build toward a final demo
Finish with a demonstration of what teams built in response to the brief.
Start the partner conversation
Share your problem through the partnership form and choose the challenge programme.
Discuss a challengePlanned format
How a Build54 CTF will work
Learn. Solve. Compare.
Planned format
Learn. Solve. Compare.
A planned beginner CTF under Challenges, where teams will practise and solve security tasks within the event’s authorised scope.
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Practise before competing
An unranked practice area, downloadable tasks, and a beginner orientation will help you prepare.
Stay inside the sandbox
Only listed sandbox hosts and files will be targets; platform attacks, off-team flag sharing, and early public solutions will be prohibited.
Find and submit flags
Your team will solve security tasks to uncover flags and submit each for checking, with each task scoring only once.
Read the scoring rules
Published rules will cover task values, hints, and ties; first blood will earn a badge without extra points.
Know when scores are frozen
A public freeze will hold ranks, points, solves, and activity at one snapshot while private solve feedback continues.
Review, then share your approach
Standings will stay provisional through integrity checks and appeals; walkthroughs will follow the competition.
Join challenge updatesResources