Retro/Grade developer Matt Gilgenbach is giving away the game he used to propose to his now-wife as a reward for supporters of his current project, Neverending Nightmares.

Neverending Nightmares is a psychological horror game inspired by Gilgenbach's struggle with mental illness. It is currently seeking funding on Kickstarter with a $99,000 goal, with $35,833 being raised at the time of writing.

Gilgenbach shared today in a Kickstarter update that all supporters of Neverending Nightmares will receive A Mobius Proposal for free, which is a game that he made to propose to his wife three years ago.

"Neverending Nightmares is not the first personal game I've designed," Gilgenbach said in a developer diary to his backers. "To some extent I'm giving [A Mobius Proposal] out now because it shows what games mean to me, how important they are and what a big role they play in my life.

"Certainly proposing to my now-wife is the most important thing I've done, and I did it through a game. That's what they mean to me. That's how important they are."

In the diary, Gilgenbach explains that he wants to share A Mobius Proposal with his supporters to show that he is not new to pouring his feeling out in a game and that he is committed to open development.

The video of how he proposed can be viewed above.