Top similar games like Opie: The Defender:

Box Nation [] is a sandbox kind of game. In this box world, you can become a leader of your own nation. Your main goal in the game is to create and develop your nation of boxes.

Eden Star is a fast paced Sci-Fi survival game that blends unique physics based combat, destructible environments and free-form construction with the exploration of a hostile alien world.

Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.

A group of terrorists has arranged a nuclear hell and occupied Fort. You’ll have to build your own base in the new world burnt by the nuclear apocalypse.

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Defend your castle in this fast-paced tower defense/action hybrid game with stunning pixel art graphics! Play as alchemically enhanced warrior Bellator, set traps, build towers, craft powerful weapons, and defend your home! The fate of the castle lies in your hands!

Prepare for a new tower defence, with a classic low poly style. Challenge many savage enemies, warriors, and monsters. Travel across your Kingdoms, to numerous environments where you take up the quest to protect your Kingdom.

Dungeon Defenders Eternity is the definitive version of the original tower defense action-RPG! Now featuring a rebalanced endgame, all new missions, secure online play, links to Dungeon Defenders II and more!

Farmocalypse is a spoopy survival farming game where you must grow crops and defend your farm against hordes of zombies, evil humans, monsters, ghosts, and demons.

RODENTWARS! Part 1. The RodentWar has begun. *THIS GAME IS AN EARLY ACCESS LIVE PROTOTYPE AT THE MOMENT* FORM ALLIANCES to conquer and SQUISH YOUR ENEMIES into HAMSTER JAM! Scavenge to DEVELOP DEADLY WEAPONS and EMPOWER YOUR BATTLESPHERES! BUILD YOUR BURROW DEFENCES and CHALLENGE ENEMIES ONLINE TO RAID!

BadLads is a neo-noir multiplayer roleplay game centered around each player having their own job. Cities are ruled by President. Civilians are assaulted by Gangs and protected by Police. Adventure, collect, craft, base build, gamble, socialize, overthrow, customize yourself and your belongings.

Take over a disfunctional Waste Management Facility on a distant planet. Build incinerators, recyclers, robots, turrets, and more. Battle vicious creatures on the planet's surface with powerful weapons!

Build and manage your space base - Survive in extreme environments - Explore Open World scenarios based on real topographic data - Gather Resources, Craft your items - Drive futuristic rovers and more...

This is the story about the beginning of the conquest of outer space by earthlings. It began as a global idea of saving mankind from hunger and lack of resources, and ended as a brutal and merciless war in space far from Earth.

Outlaws of the Old West is a massively multiplayer survival MMO with a huge world, thousands of items and a modular building system. Survive the wild, build your own homestead, defeat villainous bandits and work with others to tame the Wild West.

A solo development and the first game of Processor Game Studios presents "VOLCAN defend the Tower". A third person shooter on an open world sci-fi game, play as Sollum to defend your Volcan Towers against your enemies while exploring a planet earth with nature restored

Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.

ZERO Sievert is a tense top-down extraction shooter that challenges you to scavenge a procedurally-generated wasteland, loot gear, and explore what’s left of a devastated world. When the odds are stacked against you, you’ll need to do more than just survive...

This is a RTS/RPG game from the first person in a fictional medieval world.

Take the journey of the Portal Protector as you defend the portals to the divine realm from evil. Use strategy and skill to aid you in your defense against evil using magic, sword skills, and defensive towers. For you are the Portal Protector!

The Lich Queen needs your help to achieve her ultimate goal. Ready your troops and set your traps to hold the incoming kingdom soldiers and their allies in a 2D tower defense game!

Acucalypse is a management & strategy game where you will have to manage your resources in order to destroy the bunkers of your enemies and face their attacks. Build your bunker & planes with remains of human civilization and fill them with bombs to destroy your friend-emies!

Relive your childhood in Treefender, a VR-exclusive 4 player online co-op base-building game where you build your own treefort and defend it against a spacesquid invasion!

Do you like Tower Defense games with Strategy elements? Well, look no further! We've got exactly what you're looking for! Get ready to defend your settlement from enemies using a huge arsenal of towers!

Braverz is a co-op third person MOBA game that incorporates elements of tower defense and base building. Choose from a variety of champions, each with its unique play style and skills. Upgrade your base structures, weapons and skills while pushing back the invaders…are you Brave enough?

Lumencraft is a unique combination of a top-down, rogue-like shooter and base building with tower defense elements. Dig and light up dark halls of a fully destructible environment on procedurally generated maps and campaign levels to find precious Lumen - humanity's only chance for survival.

Defend your skyland! Grab a tower and fight off the pirates. Build traps to slow down their march. Construct utility buildings and expand your village. Play alone or join your friends in this in-depth strategy and tower defense game!

Craft in Abyss is a tower defense rogue-lite game. It allow players to design their own mechanical fortress, gather resources and continuously strengthen the fortress facilities within a sci-fi world.