$25,000 prize pool
Create the best sport the multiverse has ever seen


Prize Categories

Feats of Skill1v1 CombatRacingTeam SportsballArenas/Stadiums (Art Category)
Plus awards for most innovative, most technically impressive, most aesthetic, and best Core newcomer. The most polished competitive experiences will also win additional prizing and homepage featuring.

How to enter

Deadline: June 28, 10:00AM PDT

Publish a game in Core and fill out the form at the bottom of the page before 10:00AM PDT on June 28.

Winners will be announced after a short judging period thereafter.

Submission details and official rules are below.

Get Started

Let the games begin

Create a sport that is only possible in the multiverse. It can be inspired by a real-world sport or your totally new invention.

The Summer Games Jam has five categories - Feats of Skill, 1v1 Combat, Racing, Team Sportsball, and Arenas + Stadiums. The top five entries in each category (as determined by our judges) will win prizes (the top three of each category also getting a medal in the form of a special tracksuit), and everyone that submits a valid entry will receive an exclusive Core profile picture to showcase their status in the Core community.

Feats of Skill Create a sport that tests someone's dexterity and precision, such as gymnastics, weightlifting, archery, and discus. Primarily singleplayer. We’ll be judging based on how well the activity fits the theme, and how refined the scoring is.1v1 Combat Spanning mecha-boxing to jetpack fencing, this category tests player reactions and strategy. Feel free to add a unique twist. We’ll be judging based on the gameplay tuning, design, and aesthetic appeal.Racing Speed is the name of the game - compete for the fastest time in events like a wall-running obstacle course to lightspeed hurdling. Multiplayer or singleplayer both work, and we’ll be judging based on both how well the racing game feels and functions.Team Sportsball Team sports pit groups of two or more against one another, and often feature a physics ball (or cube). We’ll be judging entries on how well they capture the feel of a team sport, the multiplayer cohesion, and the scoring at the end.Arenas + Stadiums Create an area where all these games can live. From a soaring skyscape bristling with fireworks to a massive coliseum that acts as a hub world, the best space for these games will win. We'll be judging this category solely on aesthetic and functional appeal, not gameplay (though big bonus points for creating a grandiose event like what you'd see in a closing ceremony).
Entries in the contest will also be judged on aesthetic appeal, adherence to the theme/category, and overall polish.

Each category also encourages adding a twist based around “What is only possible in Core?” Feel free to take inspiration from fantasy games, such as Tron's disc battle, Quidditch, and countless more. Think basketball with jetpacks, skyscraper foot racing, or full contact hot potato. Check out our Creator Discord for a longer list of ideas to get your brain running, or better yet, discuss them with fellow creators!

Don't forget to start with a small scope, and enjoy creating. We look forward to seeing what you dream up!

More ways to win

We also have four awards, worth $500 each, independent from the main categories:
Most Innovative For the most creative entryMost Technically Impressive For the most astounding implementation strategiesMost Aesthetic Simply the most gorgeous entry, independent of anything elseBest Newcomer Awarded to the most promising creator that is new to Core
We are also looking for polished gameplay experiences. The three most competitively viable games (one from each category, including the arena) will win another award: an additional $500 prize and front page featuring/inclusion in the upcoming Multiverse Games Tournament! Winners will have a month to refine the game, with Manticore assisting with integrating tournament-specific logic and polish elements like a performance pass. This tournament will drive thousands of players to your game, and being a headliner for it is an excellent way to elevate your game (and your name) in Core. The winning Arena entry (in terms of it's aesthetic appeal and usability as a hub and social space for ceremonies) will also be featured/integrated in some way during the Multiverse Games Tournament.

There will also be another set of $500 awards for the best-tuned competitive experiences:
Best Competitive Game (each category)Best Artistic Arena

$25,000 in Prizing

Category Winners

  • $2000 (each)

  • Gold Tracksuit Character Variant

Each Category

  • Second: $1000 + Silver Tracksuit Variant

  • Third: $600 + Bronze Tracksuit Variant

  • Fourth: $300

  • Fifth: $200

  • All: Contest Winner Profile Pic


  • Awards (see above): $500 (each)

  • Best Competitive: $500 (each)

  • Most Artistic: $500

All Participants

  • Contest Profile Pic

FAQ / Details

What is Core?

Core is a radically accessible game construction kit, community of creators, and game-playing platform, all in one. With Core, you can create multiplayer games, using the power of Unreal Engine, with no coding or art skills required. When you're ready to share your creations, publish them to the Core platform where they'll be instantly available to play. Not only is Core completely free, select creators can also monetize their games to make a living!

Core is like having an entire game studio in your hands. It gives you the power of Unreal Engine; lets you access hundreds of free, high quality music, sound, and art assets; and enables you to bring immersive, multiplayer worlds to life.

Simply put, we want to help you create the game of your dreams. To get started, download the client at coregames.com.

If I'm a newcomer to Core, where's the best place to start?

Check out our getting started page to quickly get up to speed and begin creating. For a more structured set of tutorials, follow along with our free courses at Core Academy.

Do entries have to be playable games?

Except for the Arenas + Stadiums category, yes. We'll primarily be judging the submissions by their functionality (these games should be competitive experiences at the end), but aesthetics will be help elevate submissions. Note that we provide plenty of tools to make it easy! See our 'frameworks' (create --> new project) for full sets of game logic you can drag and drop into your map.

Can I use community content?

As always, yes, it is encouraged! Please do give credit (in your game descriptions) to pay it forward.

Are there any submission specifications?

To enter, you must fill out the form below. Feel free to ask any questions in the relevant Discord channel (e.g. to confirm your entry was received successfully).

We encourage also including WIP shots, and anything else that helps show off the process, but this isn't mandated.

Can we use existing games?

As long as it fits the theme/category, yup! We do balance the judging based on what new/unique content was made, so existing games don't have an unfair advantage, but we want to encourage people to not 'reinvent the wheel' and to keep improving existing games - doing so helps you get up and running as fast as possible (important in a time-dependent jam), and also helps make a more fully-featured game you can really be proud of!

How are entries judged?

We will take into account any adherence to the theme and category, then will judge based on the aesthetics (30%), functionality (30%), and our overall impression (40%). Note that the interpretation of these is up to the judges' discretion, and they have the final say.

Can I submit multiple entries?

Sure, but they must be unique entries! You can not submit the same entry in multiple categories.

Note: One unique case in this jam is that you can add gameplay to a map and submit the map as one category and the combination for Best Playable. Note that this isn't recommended, as the best entries almost always focus on polishing a limited scope/vertical slice, and this would spread your options out, but it is a valid option.

Can I update my entry after submitting?

Yes. But beware, judges will only be reviewing your entry once, so if you push a last-minute update and it has a game-breaking bug that will be reflected in your score. Because of this, it is heavily recommended to stick to the deadline. To keep things as fair as possible, judges will be playing the submitted games in a random order.

Can I make unique looking art in Core?

Yup! From high fantasy to dark wonderlands to modern military, we've got assets to match the mood - and thousands of primitives and materials to kitbash your own from scratch as well! Our art director's blog post describes the ideology behind it all, for those who are curious.

Can I work with a team?

Yes, and please do! For profile pics, please put all your collaborators' names (up to 5) and their credits in the game description for them to get this endowment too. Note that if your team wins, distribution of the prizing must be handled by yourselves (i.e. we'll give the prizing to the submitter, then they can allocate to team members).

What if I'm under 18?

Ask your parent or guardian to submit your entry on your behalf. They will receive the prize and then can pass it on to you at their discretion.

How are winners paid?

We use Tipalti to pay winners in their local currency. Winners will be contacted via email with the details. Please open a support ticket if you have questions regarding payment.

Where can I see the official rules?

Manticore Games, Inc. (“Sponsor”) will sponsor a contest for each of five (5) summer games jam categories: (1) Feats of Skill, (2) 1v1 Combat, (3) Team Sportsball, (4) Vehicles, and (5) Arenas + Stadiums, (each a “Summer Games Jam Contest”), in addition to eight (8) awards (collectively, with the Summer Games Jam Contest, the “Contests”.

Contest Period
Starts: Thursday, May 27, 2021 @ 10am PDT
Ends: Monday, June 28, 2021 @ 10:00am PDT

How to Enter
Complete the submission form linked on this landing page. Entries for the Awards Contest will be comprised of eligible entries from the Summer Games Jam Contests. Each entry must be unique (for example, you cannot submit the same entry to multiple categories, but you may submit unique maps to different categories).

For each Summer Games Jam Contest, the first place winner will receive Two Thousand Five Hundred Dollars (US$2,500.00) and a Core Character, the second place winner will receive One Thousand Three Hundred Dollars (US$1,300.00) and a Core Character, the third place winner will receive Seven Hundred Dollars (US$700.00) and a Core Character, the fourth place winner will receive Three Hundred Fifty Dollars (US$350), and the fifth place winner will receive Two Hundred Dollars (US$200). The prize winners for the Awards will each receive Five Hundred Dollars (US$500). All Contest entrants will also receive a genre profile picture.

Prizes will be paid through Tipalti. Winners must create or have a Tipalti account to collect their prize. For more details on Tipalti and potential tax implications, please see our Help Center article.

The contests are subject to the Core Contests Official Rules.

What if I have more questions?

The best way to get help is through the dedicated Discord contest channels; alternately email us at events@manticoregames.com and we'll do what we can for you.

Core May Art Contest
“Through the Looking Glass”

Core May Art Contest
“Through the Looking Glass”

Core May Art Contest
“Through the Looking Glass”

Core May Art Contest
“Through the Looking Glass”

Submissions Closed

The Summer Games Jam is subject to the Core Contests Official Rules.

Get Started

© 2020 Manticore Games, Inc.