Games like RoboSpider: Reckoning

"Mech Engineer" is a robot construction and battle simulation game. Players build their own mechs from a variety of parts, then pit them against enemies in tactical combat. The game features a range of weapons, armor, and movement options to customize mechs to different playstyles.

"Zgirls is a strategy game where school girls battle zombies to save the world. It boasts a good story, spectacular game mechanics, and fabulous graphics, but comes with lots of grinding and bugs. In this game, you'll lead your team of zombie-slaying school girls to victory."

"Shadows of Forbidden Gods" does not have a released version yet, but from its demo, it is a strategy game where you play as a Lovecraftian god aiming to destroy the human world. You can choose various approaches to human extinction, such as causing an ice age, a volcanic eruption, or a plague. As a god, you can also command agents to infiltrate human kingdoms and corrupt them, potentially turning heroes into your own weapons.

"Total Miner is an open-world voxel sandbox game with a focus on creative RPG game building. It features a built-in script language and editor, as well as Lua scripting support. The game also includes tools for filling and clearing large areas, and supports multiplayer through the public beta. Note that the multiplayer experience may differ from that on Xbox 360.".

"VEGA Conflict" is a free-to-play real-time space combat game. Customize your fleet with various weapons and ships, and battle other players or the VEGA Federation in PvP or PvE modes. The game can be played on multiple devices, allowing you to continue your progress wherever you go. Engage in a bloody rebellion to take back the galaxy and stake your claim in the vast expanse of space.

In Terra Invicta, players lead one of several factions responding to an extraterrestrial probe and alien presence mining beyond Earth. As global nations falter, secret coalitions form with competing goals—defense, extermination, worship, negotiation, or alliance with the aliens. Strategic diplomacy, resource management, and covert operations shape humanity’s fate amid an uncertain invasion.

Subterrain is uncompromising Sci-Fi survival on Mars! Manage the entire colony single-handed! Craft, Research, Explore and Fight against evolving mutants. Vast open world and randomly generated levels to explore! Can you survive long enough to escape the horror?

"Battle: Los Angeles" is a single-player Science Fiction Shooter game, where players step into the shoes of Corporal Lee Imlay and fight alongside characters from the movie to defend Los Angeles from hostile alien forces. With a focus on story, players will relive the thrilling and intense combat scenarios depicted in the film. This immersive game offers a first-person perspective of the epic extraterrestrial invasion.

In Zafehouse: Diaries, you manage a group of survivors in a post-apocalyptic world overrun by zombies. Through interactive diaries, make strategic decisions, manage resources, and maintain morale to ensure your group's survival. With procedurally generated scenarios and extensive replayability, each playthrough offers unique challenges and opportunities.

"Deus Ex" is a single-player mystery shooter game set in a chaotic 2052 world, filled with terrorist threats and economic collapse. The game offers real role-playing from a 3D, first-person perspective, with immersive locations and characters. It features skill development, augmentations, weapon selection, and multiple problem-solving approaches, creating an engaging and empathetic gaming experience.