Ghost 'n Goblins Online is a free-to-play action RPG on Steam Greenlight

Ghost 'n Goblins Online has landed on Steam Greenlight as a free-to-play action RPG being developed by Seed9 Games.

According to the page, the side-scrolling PC game has has a visual upgrade, contains "splendid attack skills, an expanded moving range in every direction," and a 3D environment.

Developed by Korean studio Seed9, the game was first unveiled publicly during G-Star 2010 in Seoul.

Here's a list of key features:

A Journey to Rescue the princess: Once upon a time when the dark and the light share the world, one day the princess of Sern Kingdom gets kidnapped by a satanic demon called Red Arima…. And your journey begins to rescue the princess, and humorous and mysterious stories are on the way.

Stunning Action: GHOSTS’N GOBLINS ONLINE offers an extremely instant response time and various visual effects of attack-skills on the push of attack button.

Co-Op Gameplay :Party-up with friends to explore uniquely designed dungeons and secret levels, and socialize in towns!

Demonic Dimension (extreme difficulty): Those who miss the "extreme difficulty" of the original Ghost 'n Goblins should try stages in the Demonic Dimension. Just like the original title, just one hit by a monster makes you almost naked and unarmored, just underwear, but you can still fight until the second hit which takes your life away. Playing in the Demonic Dimension will give you the same exciting and thrilling challenges of the past.

Skill-Based PVP Combat: With all the new skills that you have not seen in the original Ghosts ‘n Goblins, you can battle with your friends in matches of up to 6 players at a time (3vs3 or 1vs1 available).

Community Support: Constant updates in more items and dungeons as the world expands, and special events led by GM Livestream play sessions.

A video is below.