Show what you know
From primary school to university — five categories, one stage. Registration is open until 25 October 2026. Taking part is free.
Five categories
one stage
Kids
4–7 yrsA first meeting with robotics through play. Teams of two, simple navigation challenges, mentors always close by.
Juniori
6–10 yrsThe 2026 theme: logistics and electric cars. Building, programming and presenting the solution to a jury.
Mediori
9–12 yrsThe secondary-school format. A robot build with autonomous functions, run in two phases — qualifiers and a final.
Seniori
11–19 yrsThe most demanding category. Open to students and young engineers. An industry jury and prizes for the winners.
Startup Arena
up to 26 yrsA pitch format for student and startup teams. A jury of investors and industry, mentoring for the winners and a direct route into the partner network.
Five steps
to the stage
- 01
Choose a category
Look through the five categories above and find the one that fits your age. Each has its own rules, materials and 2026 theme.
- 02
Form your team
Gather 2–5 members and find a mentor if your category requires one. You submit your entry on the Registration page, for the category you have chosen.
- 03
Prepare your project
Research the theme, build a robot or develop your idea. Use the preparation materials and workshops run by Dečiji inovacioni centar (Children’s Innovation Centre).
- 04
Compete at the event
Come with your team in your category’s slot, following the final schedule. Show your project to the jury and the audience inside Sava Centar.
- 05
Jury and prizes
Projects are judged on the idea, technical execution, presentation and impact. The awards ceremony takes place according to the final programme.
When and how
Choose a category above, then continue to the Registration page. All we need are your team and mentor details — nothing more.
We accept entries from across Serbia, Montenegro, Bosnia and Herzegovina, Croatia and North Macedonia. The event is regional in character.
In the weeks before the event, Dečiji inovacioni centar runs preparation workshops for every category. Dates are published on this site.
During the competition days, results are published category by category on the Results page.
What you ask
most often
Is registration free?
Yes, registration and participation are entirely free for every category, including the new Startup Arena.
Is a mentor compulsory?
Kids and Juniori must have a mentor (a teacher or a parent). Mediori and Seniori may have one, but it is not required. Startup Arena teams work independently.
Do we need a finished prototype to register?
No. To register, your team and mentor details are enough. The prototype is developed during the preparation period and brought along on the day of the competition.
Which materials are allowed?
Each category’s rules set out the permitted materials, components and programming environments. Download them from the category page.
Is there mentoring support before the competition?
Yes. Dečiji inovacioni centar runs preparation workshops in the weeks before the event. Dates are published on this site.
What if we are from another city or country?
The event is regional in character — we accept entries from across Serbia, Montenegro, Bosnia and Herzegovina, Croatia and North Macedonia. We help with logistics where needed.
How long does each category run?
From 90 minutes (Kids) to 6 hours (Seniori). The Startup Arena final is a 5-minute pitch in front of the jury. Full details are in each category’s rules.
What are the prizes?
Certificates and trophies for the top three places in every category. Startup Arena winners get a meeting with the investor jury and six months of mentoring.