Jackbox Says It Never Saw His Board Game. The Solo Dev Who Mailed Them a Copy Isn't Convinced.

Jackbox Says It Never Saw His Board Game. The Solo Dev Who Mailed Them a Copy Isn't Convinced.

A one-man party game built from Mad Libs-style debate prompts

Sam Greszes is a Chicago-based games industry veteran of more than 15 years and the solo designer behind the party game Die On This Hill. After losing his job in 2024, he prototyped the game that summer, launched a Kickstarter that November, and hit the funding goal a month later with a little to spare. Copies went out to backers in March 2025, including one mailed straight to Jackbox Games' headquarters near Chicago. The game is a social party affair: players assemble silly debate topics Mad Libs-style from word cards, as in "math paved the way for ketchup," then two players argue for and against it while everyone else votes for their favorite.

He pitched Jackbox, sent the demo copy, then heard nothing

Greszes says he went back and forth with Jackbox in early 2025 while the studio expressed interest, and that it asked for a demo copy. He agreed to send one but asked the company to sign an agreement stating that if it ever made a game based on his design, he would be involved. Jackbox declined, in terms he says sounded reasonable at the time. After the copy arrived, he says, communication petered out, and more than a year passed before a video announcing Debate and Switch surfaced on YouTube. "It feels like a betrayal," he said, "especially of someone who's grown up with Jackbox games and plays them every year."

The PAX demo looked uncannily like his own design

Earlier this week, Greszes says, he came across a Shorts clip of Jackbox developers discussing the making of Debate and Switch, plus footage of the game demoed live on stream at PAX West 2026. In the footage, players generate topics from fill-in-the-blank prompts, two of them debate head-to-head, the audience votes on a winner, and then the topic morphs as players swap words in the prompt. "I'm fucking stunned," he wrote on Bluesky. The skeleton matches: a social party game built on silly debate propositions, audience voting, and a mid-game word-swap twist. Debate and Switch ships inside The Jackbox Party Pack 12, released October 15, 2026 at $29.99, for 2 to 8 players in sessions of about 15 minutes.

Jackbox denies everything, citing its firewall for outside pitches

In a statement, Jackbox said Debate and Switch "was conceived and developed by our internal team, without any knowledge of Die on This Hill." Like many studios, it said, the company receives many outside pitches, which go to a business development team that does not work on party pack games: "We intentionally don't share those submissions with our game teams, precisely so that independent development stays independent." The copy Greszes sent, the statement added, "was not shared with or played by anyone on the Debate and Switch team, or played by anyone at the studio." No legal action has been reported; for now it is one designer's word against a studio's process.

An annual machine with 10 months at most per game

The dispute lands in an unforgiving context: Jackbox's yearly release treadmill. CEO Mike Bilder has said the studio reviews 30 to 40 game ideas each year to pick the five for the pack, with the longest development cycle running 10 months and late-greenlit titles built in six to seven months after a January or February sign-off. Under that pressure, parallel thinking is always plausible and almost impossible to disprove from outside. For independent designers, the cautionary lesson is procedural: get the paper trail and the adaptation terms sorted before the demo copy ships. Greszes did the hard part, funding and fulfilling a real game; the harder part may be turning a strong suspicion into a verifiable answer.