Casual co-op! Co-op for everyone.

"Combines core action gameplay with a special co-op mode that lets even your grandma join in!"
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About One Man On Mars
Some bits of extra information about the developer

OneManOnMars Art & Games e.K. is an one man independant video game developer in Hamburg. Roman Fuhrer, the man behind OneManOnMars has been working on games since 2000 on over 50 games on several platforms. The development of Leif’s Adventure: Netherworld Hero started late 2015. OneManOnMars has been founded early 2017.

Where the magic happens

Although creating video games has not much to do with magic it is more about following a passion with a lot of creativity and effort.

Latest Developments
Stay up to date with all the latest news of Leif's Adventure.

Tokio Game Show 2018 Report

Nov. 3, 2018 by

  The Tokio Game Show has come and gone. And there has been so much to do since I am back from Japan. So I did not really find the time to write some words about the trip. But I

The Famicast is reporting about Leif’s Adventure: Netherworld Hero

Okt. 9, 2018 by

After Tokio Game Show the Famicast did some reports about Leif’s Adventure. This is what they had to say about the game on their web page: Game: Leif’s Adventure: Netherworld Hero (Swiss Games) JC: 2D platformer with 2-player support character.

Leif’s Adventure @ Otaku Mode Hut | Tokio Game Show 2018

Okt. 9, 2018 by

At this years Tokio Game Show I had the honor to be part of the Otaku Mode Hut and gave an interview while try to play Leif’s Adventure. You can check it out on Twitch following this link:

OneManOnMars DevVlog: Gamescom

Aug. 31, 2018 by

I am just back from this years Gamescom in Cologne.  I was there for four days but have not really been looking much at other games. My goal was to find a possible publisher for Leif’s Adventure: Netherworld Hero.  Was

Enter the Matrix

Aug. 10, 2018 by

In this episode, we will have a look at a very integral part of any game creation: THE CODE! I will go through one very short and simple script to position the camera when the level is loaded. I try

Dev Vlog: Japan, I am coming!

Jul. 27, 2018 by

This episode of my development vlog is a rather short one. I will not go into any details about any aspects of games development but talk about the upcoming month and make a pretty cool announcement!

Dev Vlog: Village tour

Jul. 20, 2018 by

Today, we will check out the village of Leif’s family, where the game starts. We have a look at the process of setting up a room in Unity. Thereafter we make a tour through the village at night. And how

Dev Vlog Enemy Design Part III: Unity Integration

Jul. 10, 2018 by

Dear Reader, In this episode of OnManOnMars Dev Vlog, I talk about how the art and animations that have been created in the last two episodes end up on the game via Unity. You can see me fighting the new

DevVlog: Enemy design part II – Animations

Jun. 29, 2018 by

Today, I talk about the animation process for an enemy, but this applies to almost all characters even the player character. How do the images learn to walk? I show how to set up the rig in Spine. Adding bones,

Dev Vlog: Enemy design

Jun. 20, 2018 by

In this episode, we’ll have a look at designing some enemies. Bringing new enemies into the game takes several different efforts. Here we’ll focus on the sketching and the coloring parts. So the visual appearance of the enemy. In further episodes,