party game maker

Party game maker: short rounds, secret roles, everyone together

Describe the party game you want to play with your friends. Your agent builds it, and Summer runs the match: quick play, parties, chat and a board of total wins.

A party game is quick to join and loud to play. Friends jump in together, strangers fill the rest of the match, short rounds keep everyone laughing, and a running count of wins brings people back. Summer Engine gives you each of those pieces, so the work goes into the rules that make your game funny.

Players press Play, alone or with their party, and quick play fills the match. Summer starts a server for it, where your rules run the rounds, hand out secret roles and keep the score. When the match ends, each winner gets a win on the board and everyone can jump straight into the next round.

You build it by asking. Your AI agent follows Summer's multiplayer skills in order: the server and client, instant movement, rounds and roles, matchmaking and parties, chat, and the wins board. Test it with several players on your own computer before anyone joins.

Quick play for up to 16 players

Summer has measured matches of up to 16 players, a good size for a crew of suspects or a round of chaos. Players press one Play button. Friends in a party land in the same match, and quick play fills the empty seats with other players.

Secret roles the server keeps secret

The server deals the roles at the start of each round, and each player's game learns only its own. Every action is checked against the player's real role, so a modified client cannot peek or cheat. When the round ends, the server reveals everyone's role.

Short rounds, chat and a reason to come back

Players talk in the match with built-in chat. The server adds a win for each winner when a match ends, and a wins board shows the top 50 and each player's own place. A bad round is never more than a minute from the next one.

From the group chat to a live game

Plan the rules with your friends on the Summer Board, let your agents build them, and test the game with Local Play. When it is ready, your agent publishes it on Summer Games for Mac and Windows after you approve, and your friends join with their Summer account.

Frequently asked questions

How do I make an online party game?

Download Summer Engine, connect your AI agent and describe the game: the round, the roles and how someone wins. The agent builds the server and client, quick play, parties, chat and a wins board, and Summer runs every match.

How many players can join one match?

Summer has measured matches of up to 16 players. Quick play fills each match, and friends in a party always land together.

Can I add secret roles?

Yes. The server deals the roles, each player sees only their own, and every action is checked against the real role. The server reveals the roles when the round ends.

Do I need to run a server?

No. Summer starts a server for every match, so nobody hosts and the game keeps going when someone leaves.

Where do people play it?

Publish it on Summer Games and players join in the Summer Games app on Mac and Windows with their Summer account. Your agent prepares the store page and asks before the game goes live.

Keep exploring

More ways to build with Summer Engine

AI game maker

The hub for making complete 2D and 3D games by describing them.

Open

Online multiplayer game maker: you make the game, Summer runs the servers

Describe the game you want to play with other people. Your agent builds the client and the server, and Summer hosts every match, so nobody has to run a server or share an address.

Open

Make a game with friends, then play it together

Talk and draw the idea with your friends on one board, let your agents build it, and play it together. Summer handles the servers, the parties and the saves.

Open

AI game maker for game jams, built for the clock

When the theme drops, describe your idea and Summer Engine builds a playable prototype in minutes, so you spend the weekend tuning the fun instead of fighting setup.

Open

Make a game locally for free, with AI options when you need them

Build and play locally with the free Summer Engine desktop app. Hosted Summer AI requires an account and paid credits.

Open

AI puzzle game maker for grids, match-3, and logic puzzles

Describe the puzzle you have in mind and Summer Engine builds the rules, the grid, the win condition, and a run of levels you can play and rebalance in plain language.

Open

AI sandbox game maker for open worlds you actually own

Describe the sandbox you want and Summer Engine builds the world, the building and placing mechanics, and the systems that let players roam, mine, and create.

Open

AI pixel art game maker for real retro games

Describe a pixel game and Summer Engine builds the sprites, tilemaps, animation, and gameplay as one project you can play, tune, and export.

Open

The easiest game maker is the one you talk to

If every other game maker felt like homework, this one does not. You describe the game you want in plain English and Summer Engine builds it, then changes it the same way.

Open

Online multiplayer game maker

Matchmaking, parties, saves and leaderboards, hosted by Summer.

Browse

Make a game with friends

Plan it together on one board, then play it together.

Browse

Party brawler template

A quick party game to start from.

Browse

Connect your AI agent

Claude Code, Codex, Cursor or the Summer agent, set up with one command.

Browse

Start building your game now

Download Summer Engine, describe what you want, and watch it come together. Free to start, no coding required.