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Crimson Brush
The Crimson Brush is an open format painting competition held at Cancon 21-23 January 2023. Their judging panel for this year are David Colwell, Natalia Oracz and Sebastian Archer. The ArcOpen team recommends The Crimson Brush to everyone and hopes that in supporting other events with similar aims we can enrich and grow the Australian Miniature Artist Painting community.

Click the Crimson Brush logo above and link to their website find out more.
ArcOpen is for anyone who shares a passion for painting fantasy and futuristic miniatures.

The Arc40k team hope ArcOpen inspires and challenges everyone to advance their skills, seek to improve, and strive to present their best work.  Rather than competing against other entrants in a shoot out for a limited number of awards we will recognise attainment of quality and effort. 

There are no first, second and third places at the ArcOpen. Instead our judges will use their time to grade achievement - basing their decisions on the standard of the work and in the end which pieces deserve to be recognised as Gold, Silver and Bronze level awards. 

As the ArcOpen System is about presenting a level of painting mastery there will be no limit to the number of awards that can be given out. If five miniatures are worthy of the ArcOpen Miniature Painting Gold standard then that’s how many awards we will present.


The ArcOpen team also plan to recognise an Event Master - for the Overall Best in Show, as well as a Junior Best in Show. Everyone attending the event will be asked to cast their vote, just as we do in Arc40k to decide one of Australia's most prestigious awards the People’s Choice for the most popular Army, we will be looking for the Most Popular at the show. And because we are part of Australia's Premier Warhammer 40,000 event then there will also be the Arc40k TO's Award for the best 40k entry.


The ArcOpen categories give a wide variety of options for painters to explore their hobby craft. We hope it makes ArcOpen an event that works to encourage participation by painters of all skill levels as our system is based on the principle that every deserving work should be recognised.

Single Miniature

This category is for any single Human-sized fantasy/futuristic miniature mounted on an appropriate sized base. This includes miniatures mounted on creatures or small vehicles. This category is for miniatures up to 40mm scale.


This category is for squads, squadrons, gangs or units of three or more fantasy/futuristic models. This includes miniatures mounted on creatures or small vehicles. The unit may be displayed on an appropriate sized base. This category is for miniatures up to 40mm scale.

Larger Figure- Character/Monster/Vehicle

This category is primarily to provide a category for fantasy/futuristic models of vehicles; other mechanical subjects; or single large Monsters.

We expect to see large miniatures in this category, so we are also looking to include all entries in scales of 75mm or larger and will include busts.

Models that do not require a base may still be mounted on an appropriately sized base.


Some Rules* to help with your entry:

  • There are no limitations on the manufacturer or method of production of the miniature. However, models that would breach any company’s Intellectual Property Rights may be excluded or disqualified. If you’re unsure get in touch with us:

  • AcrOpen tickets allows you to enter up to 6 entries - a total of 2 submissions per category.

  • No mail-in entries are allowed or will be accepted. If you would like to participate in the painting competition you must be present at ArcOpen in order to compete.

  • You can only enter models that you have painted.

  • It’s hard not to want to share our work and thanks to social media it can be shared far and wide - to help with impartial judging, see each entry for the first time in show allows the process to be without influence and bias. To ensure the integrity of the event we encourage entrants to keep their work under wraps or to at the very least try and keep the publicity surrounding them to a bare minimum.

  • By entering ArcOpen 2023 you agree to let Arc40k, ArcOpen, House of War and our affiliates to  photograph and/or video record your entries for use in event coverage and promotion in galleries, ads and promotional materials.

  • The ArcOpen team will take every care in handling models during the event, but are not responsible for any damage that may be sustained during the event. 

  • You will be responsible for picking up your entry on Sunday 5 March 2023. Anyone who does not pick up their entries by 6.00pm  will forfeit ownership of the entries.

  • All decisions of the judges and announcements on awards are final.


ArcOpen will be held as part of the Arc40k weekend Saturday 4 & Sunday 5 March 2023. We’ll have more information about our exciting activities program that will allow participants to engage and immerse themselves in a weekend celebrating painting - including the exact event timing, the registration process and more. As our plans are confirmed we’ll be quick to update everyone.


*The Rules listed here for ArcOpen may be added to and expanded as further details are confirmed.