10 great Steam games featured in the Martian Mystery Bundles

Prepare to run, climb and kill to survive in the first-person action RPG Dying Light. Players take on the role of Kyle Crane, an undercover agent exploring the dangerous urban environment of Harran whilst scavenging for supplies and crafting weapons to fend off hordes of flesh-hungry creatures.

The undead are a threat no matter what time of the day, but once the sun goes down, the hunter becomes the prey as the infected grow in numbers and strength. Gamers will also have to go up against the lethal Volatiles zombies, who leave their nests in the darkness to feed.

Our advice, keep your wits about you and use everything you’ve learned to survive till dawn…Good night. Good luck.

>observer_ is a cyberpunk horror game from Bloober Team, the creators of Layers of Fear. Discover a dark cyberpunk world beset by plagues, war and squalor.

Play as the new front line of neural police as you hack into the jagged minds of the insane. As you hack into the unstable minds of criminals and victims to look for clues, you will relive their darkest fears, forcing you to question your own reality... and your sanity.

Starring Rutger Hauer (Blade Runner, Sin City) as the voice of protagonist Daniel Lazarski, gamers will enter the dark and disturbing dystopia and experience a thrilling horror aimed at mature audiences!

Hey, keep that graveyard clean!

Adventure RPG Graveyard Keeper is a medieval cemetery management sim where players build and manage a graveyard - tasked with finding shortcuts to cut costs, expanding into entertainment with witch-burning festivals, and scaring nearby villagers into attending church.

This is a game of capitalism and doing whatever it takes to build a thriving business. Make alliances and sell bodies to someone who can put it to good use, or cash in on body parts - it's being efficient with recycling!

Gamers will get to explore mysterious dungeons, taking a trip into the unknown to find useful new ingredients, which may or may not poison a whole bunch of nearby villagers.

Cold...s...s...so cold!

Prepare for one of the most challenging, yet addictive society survival Steam PC games with Frostpunk, from the creators of This War of Mine. Strong leadership and strategy skills are essential as players will be pushed to the brink of extinction in some of the harshest winters of modern game worlds.

In an entirely frozen world, players are tasked with ruling the last surviving city on Earth, developing steam-powered technology to face the overwhelming cold. Optimize your city with the correct resource management whilst dealing with empathy, morality and thoughtful decision-making.

Tend to your shopkeeping duties by day and confront monsters in dungeon-esque realms in the rogue-lite action RPG Moonlighter. Players will embark on a top-down adventure that sees them leave the sleepy village of Rynoka through portal gates where they must defeat monsters and loot valuable items to bring back for a profit.

Each gate run is unique and forces you to make smart and calculated decisions. You never know what you will encounter next – so be prepared for everything. Access strange worlds through otherworldly gates and collect valuable items from exotic civilizations: resources, weapons, armors and peculiar artifacts.

Get ready to out-think and outmaneuver your competitors as you lead your railway company into the 20th century with simulation strategy Railway Empire. Gamers will need to create an elaborate and wide-ranging rail network - purchasing over 40 different trains modeled in extraordinary detail - and buy or build railway stations, maintenance buildings, factories and tourist attractions.

Master challenges and objectives through a range of scenarios, or create your perfect railway network in construction mode without any financial pressure. Plus, use the 'Ride Along’ feature to explore your rail network and beautiful scenery from the driver’s cab from a first-person perspective!

Oh boy, he's not happy!

Stealth horror game Hello Neighbor sees players sneaking into your neighbor's house to figure out what horrible secrets he's hiding in the basement. You play against an advanced AI that learns from your every move, making each encounter different.

With sandbox-style gameplay with plenty of environmental interaction and physics, players will have lots of opportunities to succeed - but just as many chances to fail at the hands of the creepy neighbor!

Stick 'em up, cowboy!

Call of Juarez is an epic adventure western themed FPS game. where the player alternately assumes the roles of two distinct, antagonistic characters: a sneaking fugitive Billy and his hunter the reverend Ray. The game features fast-paced revolver duels using historically accurate firearms, horseback riding, mounted combat and stealth actions in memorable locations set after Western movies.

Accurate simulation of not only rigid bodies and rag-dolls - but also liquids, gases, fire and smoke - makes the gameplay innovative and non-linear, giving you a proper gun-slinging Wild West experience.

Come and join the adventure and unlock a world of colorful characters, dynamic storylines, and sexy guests waiting to meet you in House Party. This adventure simulation will test your wits by making smart choices at wooing guests.

Maybe you’ll be a swell guy, and help the guests out with their problems, or maybe you’ll be a trouble-maker and start some drama - the choice is yours to be well-behaved... or completely inappropriate.

The party is just getting started!

A mystical fantasy world awaits in action RPG Shadows: Awakening, where gamers will venture through the Heretic Kingdoms saga. This isometric-view, real-time combat Steam game sees players take control of a demon summoned from the Shadow Realm – the Devourer – to consume the souls of long-dead heroes and embark on an epic adventure with challenging gameplay, a gripping storyline and enchanting graphics.

Gather your party, control powerful heroes and use their skills to your advantage - will you save the world, or cause complete disaster?