List of video games
Operator: Observation
TBA
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No ratings
Operator: Observation is a Game based on the "Watch Rooms, and Report Anomalies" Concept of "Observation Duty" but now the Anomalies are way more aggressive and have way more ways …
Operação Prato
TBA
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No ratings
'Operação Prato' is a game based on one of Brazil's greatest ufological mysteries. Step into the shoes of Mario, the reporter who will risk his own life to expose the …
Operencia: The Stolen Sun - Explorer's Edition
TBA
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No ratings
This edition includes Operencia: The Stolen Sun, Zen Studios’ critically acclaimed modern homage to classic first-person dungeon-crawlers in it's entirety, as well as all contents from the Explorer’s Pack - …
Operius
Oct 21, 2021
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No ratings
Operius is a high-speed arcade-inspired shooter where you go through an infinite amount of levels and try to get the highest score! This game was made specifically for the Opera …
Web Browser
Operius DX
May 30, 2025
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No ratings
Blast off into Operius DX, a high-speed arcade shooter where you navigate twisting polygonal tunnels, battle waves of enemies, and confront formidable bosses in an endless amount of procedurally-generated levels. …
Nintendo Switch
PC (Microsoft Windows)
Ophelia's Chapter
TBA
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No ratings
A story-rich, psychological-horror adventure game. Play as an urban witch with psychic abilities and delve into the mysteries of a world inspired by the work of Neil Gaiman and Stephen …
PC (Microsoft Windows)
Ophelia´s Paradise
Dec 31, 2026
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No ratings
Mystical Horde-Survivor. You are the hero who defends paradise against hordes of adversaries. On your journey, you will unleash legendary powers in a mystical world and discover unique items.
Opi Popi
Apr 18, 2026
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No ratings
Opipopi is a short point-and-click adventure game where the player spends time in their room before falling asleep. Players can interact with various objects in the room in any order. …
PC (Microsoft Windows)
Web Browser
Opia
Feb 13, 2024
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No ratings
Opia is a short comedy-horror visual novel with a few endings and many choices. The player is on their first date with Kira, but right from the start, things feel …
Opie: The Defender
TBA
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No ratings
Opie: The Defender is an action game involves building a base, crafting weapons and exploring environments with dynamic combat system.
PC (Microsoft Windows)
Opioid visions 88
TBA
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No ratings
Opioid visions 88 is a first person shooter. The game presents the protagonist's visions of substances that expand consciousness.
PC (Microsoft Windows)
Oplero
Feb 3, 2025
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No ratings
Soar your way through 4 worlds and defeat fearsome bosses on the search for your lost friend. Discover the true nature of the world and reconnect.
PC (Microsoft Windows)
Oplitak
Feb 2, 2022
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No ratings
Oplitak is a game that combines various game mechanics such as 2D platforms and 2D shooters. The combination of cartoon-style graphics, dynamic gameplay and easter eggs make the game attractive …
PC (Microsoft Windows)
OplitisAV
Nov 29, 2021
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No ratings
You are a Ferocious Anti-virus Systemic Trucidator (FAST), you are injected in an infected system, and your sole objective is to eradicate all virus life forms.
PC (Microsoft Windows)
Opollo
Jul 15, 2025
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No ratings
Little Minimalist Arcade High Score Chaser with 200+ Vehicle combinations.
Linux
PC (Microsoft Windows)
Opona
Dec 31, 2026
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No ratings
The reality TV show Popworld is a one-way ticket to pop stardom, and Mia and Noah came here to win! Fight your way through turn-based dance battles (and a whole …
PC (Microsoft Windows)
Opossession
Mar 14, 2024
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No ratings
Humanity has reached unparalleled heights of advancement, traversing the vast expanses of space and establishing settlements across the cosmos. With a staggering population of 400 quadrillion souls, our species has …
PC (Microsoft Windows)
Oppcium
Dec 5, 2021
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No ratings
A sentient alien organism has escaped its cage and now freely roams a government facility. Silence has engulfed the city as a toxic and unidentified cloud was released from black …
PC (Microsoft Windows)
Opportunity
TBA
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No ratings
Opportunity is an atmospheric narrative game where you become the famous NASA rover and brave the many obstacles littering the desolate red planet in order to finally complete its mission.
PC (Microsoft Windows)
Opposite Day
Oct 10, 2021
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No ratings
Follow the game instructions exactly as they are written. They won't lead you astray... or will they? Find a way to avoid the red lava and reach the other side …
Web Browser
Opposite Day 2
May 8, 2024
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No ratings
Sequel to Opposite Day. Follow the game instructions exactly as they are written. They won't lead you astray... or will they? Find a way to avoid the red lava and …
Web Browser
Opposite Lock Rally
Opposites
Jul 21, 2010
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No ratings
Opposites is a Tetris-style competitive puzzle game. Two players play simultaneously on the same field; one player adds white pieces from the left while the other adds black pieces from …
Xbox 360
Opposyte
TBA
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No ratings
Have you ever imagined a race between teams starting from the same point, but with OPPOSITE DIRECTIONS? The encounter is inevitable. Survive your enemies, complete laps and score points for …
Oppressed
Apr 14, 2025
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No ratings
Our protagonist Luke finds himself in a hallway with a gun on the floor, not knowing how he got there. He has no idea how and why he ended up …
PC (Microsoft Windows)
Oppressiv Light
Oppressiv Light
TBA
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No ratings
Trapped with an alien in a lost spaceship, and you're running out of power...
Opps! They Love Me Way Too Much!
Apr 1, 2024
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No ratings
You'll immerse yourself in first-person perspective, encountering four boys with diverse personalities and appearances, embarking on various sweet love stories with them. The aloof boss, the gentle neighbor, the adorable …
PC (Microsoft Windows)
Oprost
TBA
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No ratings
Use the souls of fallen animals to jump, fly, and dash through a decaying forest, chasing the monster that is tearing it apart
PC (Microsoft Windows)
Ops
Aug 13, 2024
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No ratings
Created by real life VLA Operators, "Ops" takes you inside the shadowy world of NRAO Special Operations and puts you at the controls of the world's largest energy weapon: the …
Linux
Mac
PC (Microsoft Windows)
Opscam
TBA
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No ratings
OpsCam is a multiplayer team game. Players engage in fast-paced combat in close-quarters environments. Join other players in thrilling PvP battles.
PC (Microsoft Windows)
Opsu!
Jun 29, 2014
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No ratings
Opsu! is an unofficial open-source client for the rhythm game osu!, written in Java using Slick2D and LWJGL.
Optasia: The Last Visit
TBA
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No ratings
A first-person psychological experience set inside a fading mind. Explore an empty asylum, shifting memories, and the quiet weight of promises left behind. No puzzles. No escape. Just one last …
PC (Microsoft Windows)
Optical Ball
Optical Illusions
Optical Inquisitor
Feb 22, 2014
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No ratings
Its the year 1988. Acid wash jeans are in. Our hero, Tommy Rissken has been betrayed by his friends and had to serve a prison sentence for 8 years. Now …
Android
Optico
Apr 1, 2026
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No ratings
Optico is a 2D point and click puzzle adventure game with hand drawn art in noir aesthetics. You need to solve the puzzles to discover the secret, a treasure far …
PC (Microsoft Windows)
Optimal Conditions for a Sacrifice
Dec 3, 2021
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No ratings
It’s very straightforward and approximately 5k words short and has slightly different offering outcomes but they all lead to the same one ending; couple of dead-ends are present in case …
Android
Linux
PC (Microsoft Windows)
Option Monster
Optisocubes
Opus 1 - Social Justice War
TBA
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No ratings
Shoot down fascists and free humanity from bigotry!
Linux
PC (Microsoft Windows)
Opus Castle: Chapter II
Oct 28, 2021
· DLC
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No ratings
Continue the journey in this adventure and mysterious game with a narrative based on the real tragic history of the little castle on Apa Street, located in the city of …
Opus Castle: Chapter III
May 10, 2025
· DLC
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No ratings
In Chapter 3 of Opus Castle, the mystery surrounding the tragic events on Apa Street deepens. The shadows grow denser, and the line between reality and illusion begins to blur. …
Opus Castle: Chapter IV
May 12, 2025
· DLC
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No ratings
Chapter 4 invites you into the heart of the castle's darkest secrets. Time begins to distort, showing the past as if it were the present. Visions of those who lived—and …