I find my inspiration in the most random of places. Therefore, as a way of paying back, I challenged myself to come up with 1 new game idea every day (posted on my Twitter).
A children’s book which acts as a long-lasting board game. Each night the child rolls 1 die to determine where the main character moves, telling a new story based on the roll any previous experiences. 
An app that has data on all board games and is able to replace any pile of cards that may be drawn and simulate the roll of any type of dice. 
Cooperative mini sim board game, with 3D models of buildings that score points when placed, based on the surroundings. Like a beautiful co-op Patience. 
Hotel-owner game in which you need to host fantasy trope characters. Have a barbarian room, a wizzard’s room, and a stable for the dragon. 
Card game that requires constant communication, only you’re not allowed to talk. The theme involves not waking sleeping giants; so it can be quietly played around actual sleeping people. 
A cooking game in which you need to gather recipes and add them in the write order/proportions. The game can be localized, to teach players about cultural recipes. 
You play a panda that rolls around the world in search of bamboo. You gain style-points for doing awesome tricks while flying through the air. 
Pokémon, but with the ghosts of animals; the older the ghost, the more powerful it is, all the way back to dinosaurs and ancient jellyfish. 
A set of connected board games, each in a different genre. A roll-n-write game of which the dice serve as an expansion to a battle game & tokens from a tile-placing game that expand the connected card game. 
Gamification of job-searching, to help people play through the hardship in search of a fitting job, showing their determination, knowledge, and personalities to potential companies. 
Forest-building board game in which you add flora and fauna to maintain the ecosystem, while a human settlement on the outskirts of the forest is slowly destroying it. 
One-colour game in which the colour indicates the distance to the nearest wall, as you find your way through a snaking maze. 
A quick 2D platformer in which you walk across a path as quietly as you can. The noise you make shifts the area ahead of you, making the obstacles tougher (in an endless loop). 
You play a police dog, in which you need to follow scents and need to instruct you human boss on what you find. 
A adventure puzzle game completely based on sound, indicates the direction and distance of enemies, as well as other objects. With sounds for each type of action, and their effectiveness. The screen is always black. 
A game that starts with a menu. The objective is to simply start the game, going through a kafkaesque system of menus and sub-menus. 
Musical game in which enemies attack rhythmically and every action creates a certain sound; allowing you to create music while you play. Be more creative and well-times with you tune to score more points. 
Story-rich board game set around a caravan. Players gather people and adventures, adding them to their caravan, traveling to even more adventures and people to meet. 
A series of connected games; one in which you are a store-owner, one is an RPG in which the hero can visit said store, one an RTS in which you move minions around that can be defeated by the hero, etc. 
Social tabletop game; all players close their eyes, except the mole who keeps his eyes open, and plays a card. Each card has a number of holes in different shapes. If the right number of holes is presented, the mission succeeds. 
An assembly tabletop game in which you set up a massive factory to fulfill market demands; the playing area is as big as the table you’re playing on; tracks can overlap and mix, and hinder other players’ tracks. 
Narrative-driven online card game in which each player plays cards either on his own story or the opponent’s; adding obstacles, locations, items, etc. Both players act at the same time; mana recharges constantly. 
Shadow of the Colussess-type game, but there is only 1 behemoth enemy and its the size of a moving mountain, with villages, dungeons, engine rooms, etc. 
A slow-pace sim game in which you build the perfect city, with perfect systems and tight mechanics. But then you are introduced to an individual and realize how controlling the government is, and it becomes a survival first-person dystopian adventure. 
A sniper/assassin game but set in fantasy medieval England as an archer of a mercenary gang. 
Multiplayer aerial combat fighting game in which super heroes fly about shooting, kicking, punching each other. The speed at which you have to move always increases, when not going fast enough you are instantly eliminated. 
A side-view sim like Fallout Shelter, but as a card game. You play cards to activate rooms, introduce new people, and deal with threats and hazards. 
A puzzle game in which you are a robot moving around a forgotten world. Each time you take damage you lose a polygon, altering your shape (which is required to solve puzzles). You only regain them at recharge stations. 
A board game with random components and cards with different tasks. Playing the game helps game designers come up with new ideas, as they have to make up fair rules each time they use a components. 
A gardening game played solitaire, like… Solitaire. It’s peaceful and calm. You plant seeds, watch the grow, harvest and collect, and sell them at the local farmer’s market. 
Coop dice-rolling game in which all players act simultaneously, trying to rob a bank and escape. However, each player has his own secret mission and one player is a mole, trying to make the whole team fail. 
Spore, but with cyborgs. You start as a program on the internet, then gain a robotic body, and eventually hack the entire world. 
Building defense board game with Lego-like system of interlocking bricks. The goal is to prevent an incoming flood. 
Online battle game in which each player is a golem. Being hit reduces your size, thus golems of many different sizes fight; climbing on to each other and nibbling legs. 
Platformer in which you play a cloud. Become mist to go through objects; fluffy to fly; thunderstorm to attack. 
Online spaceship battling game in which you control a fleet of ships; all moving in three dimensions. 
Top-down adventure game set in Innsmouth; avoid the locals and explore the devil’s reef. 
Streamer’s game in which chat operates a giant megazord, fighting monsters, and the streamer is a single player mechanics trying to keep things together. 
Each player is a volcano and each turn equals 1000 years. The goal is to erupt with the most power and devastation. 
Small-scale tabletop war-game, set in Discworld. Because reasons. 
Online puzzle game in which players can upload their own pictures to be puzzled on by relatives with dementia. 
VR game set in space with exploration gear (grappling hook, jets, etc.) and free movement to explore an abandoned space station. No combat, just exploration. 
You play a world-shaping god with a demigod offspring that you need to train to become the best. Halfway through the game you lose complete control over your child as it enters puberty. 
Turn-based PvP tactical combat on a hex-grid in which both sides act simultaneously. Each turn the player moves a single unit, after which the turns ends. Skipping a turn/unit is not possible. The objective can be either ‘capture the flag’ or ‘king of the hill’. 
Tabletop RPG about survival in a world of complete darkness. Centre table stands a candle and the game lasts as long as the candle burns, after which darkness takes over the world. 
Storytelling board game in which your copy of the game is customized to you, as you play through your own life (ups and downs). 
Board game in which you set up a startup company, in which you have to balance income with time, with the inevitable failure, with the energy to keep going for victory. 
Skirmish battle game with personalized units (gear + abilities), with easy setup, unique starting character, and a campaign AKA box-ready Mordheim. 
Replayable deduction game (without cases); set 1 suspect aside, on a turn the player looks at one of the other suspects and shares 1 attributes (male/female, tall/short, fat/thin). First player to deduce which suspect is missing wins. 
Real-time strategy game in which units can be controlled by other players. It’s an RTS for one player and a MOBA for a group of others, versus the game. 
Platformer in which your character dies every 100th step, resetting you to the beginning, while all other changes remain. 
Online RTS in which teams of players start on their own spherical planet and need to make an object large enough to reach the other planets, in order to defeat the players there. 
Hide and seek versus an small artificial gremlin that can be found using AR. It leaves behind footprints that fade over time, as it runs around from one spot to the next. 
Hidden-role game in which each player has a UFO and tries to abduct different kinds of objects; centre table are random household objects, and each player calls out an attribute, preventing adjacent players from taking those objects. 
Dice-rolling set-collection game in which players avoid gaining all the icons to accidental summon a demon and end the world AKA Yahtzee with only penalties. 
Deck of cards with terrain features & events. The table you play on is an island, and where the cards are placed depicts their actual location. Players semi-cooperatively try to avoid dangers and gain enough resources to build a boat and escape. 
Card game in which each player builds 2 decks; one for the character and for for a dungeon. Each player must escape the other player’s dungeon. 
A diary-entry game in which you rate your bad thoughts. This rating is transformed into an evil dark hound that you need to defeat. 
1v1v1 competitive puzzle game set in the world of Jack the Ripper. 
Catcup. You are a cat. But shaped like a cup… Catcup. 
Newspaper game in which you need to add as many important articles to the front page as possible AKA roll-and-write Tetris. 
Horror game in which you play as someone who is slowly loosing control over his body. Mouse movements become sluggish, movement controls reacts slower, and you need to hold different sets of (more) buttons to interact with the world. 
Online stealth/sniper shooter in which you are invisible & blind – but NOT immaterial or deaf – when standing still. 
Seafaring PvPvE game in which viking draugr invade in a storm of frost; you are part of a faction aiming to reclaim a set if islands. 
Each player is a survivor of the apocalypse. The game takes place in your own home as you try to survive & escape your own destroyed town. 
Adventure Time tabletop RPG in which you use d6 with a face on it. When rolling, all opponent’s dice within line-of-sight of your die’s face are removed before counting. 
AR racing game which simulates a small vehicle driving across your surroundings: jumping from objects in your living room, racing across the ceiling of your office, crashing into a tree. No race track; instead certain spots in your surroundings are marked. 
Mass online platformer in which each player is a cube-shaped robot. Dead robots form building blocks used for the puzzle-platforming. The first player to reach the finish wins. 
Stealth game in which you play as a master thief rat in a millionaire’s mansion. 
VR game set in a courtroom in which you are the judge. You’ll have to read people’s faces and analyze evidence to eventually make a judgement. 
Hex-grid arena fighting tabletop game in which players place tiles in fields to determine their actions AKA single unit Neuroshima Hex meets Monster Hunter. 
Shooter in which you are made of inflatable rubber; able to slide through cracks and absorb bullets. However, walking like flubber is real hard. 
Roguelike dungeon crawler where enemies are defeated by pressing certain (combinations of) keys, as an education game to teach touch typing. 
Reality-swapping adventure game in which your character swaps to a new reality every 60 seconds, with random natural laws, obstacles, and abilities. 
Online card game without turns; each player gains 1 mana per second & the maximum mana increases every 5 seconds. 
Yokai research game in which you need to witness & study each type of yokai by setting up events in a certain way and place traps to capture and study them (no pokéballs!). 
Tower building game set on a triangle grid with random player tiles on each intersection. Players move tiles along the lines a number of steps equal to the tower’s height. When no more moves are available, the player with his tile on the highest tower wins. 
Smithing mobile game in which you get poorly described assignments and then have to hammer (tap) a chunk of iron into the desired shape. 
Platformer in which you don’t see the platforms or walls. But you can shoot water, to see it drip off the surroundings. 
Action RPG about defeating a murderous black knight. After slaying all his servants & gaining your own followers, you defeat him and become the new black knight. 
Battle royale game in which players build tanks (steampunk style) in teams. Bigger equals stronger, but also more work to keep moving. Stowaways accepted. 
MOBA in which one player on each side controls all the mobs (like a real-time strategy game). 
Card game with creative inspirational tasks listed on each card, used by students/startups for the ideation process. Shuffle, brainstorm, repeat. 
Puzzle-like stealth game in which you play as a succubus demon dragging people into the underworld instead of assassinating them. 
Retro type-command adventure game with modern AI so that the player can type anything (and it is understood as a command). “Grab the banana and throw it at the Queen… Angrily.” 
Oregon Trail but set underwater, where the mobile submarine has to be expanded, improved, and repaired as you make your way from R’lyeh to Atlantis, facing sharks, poisonous urchins, underwater volcanoes, and more. 
2D exploration game inside a human body, playing as white blood cells fighting off pathogens. 
Set-collecting game about the process of wine-making. Gathering “notes” and making different blends. For the posh geeks out there. 
Two-player local co-op shoot ’em up. Each player holds one side of a tablet, with mirror controls for their own characters in a top-down view. 
Tabletop RPG using Mahjong tiles as a deck for character action testing. The player builds a wall; width is awareness, height is defense. 
Tabletop racing game with miniature vehicles in which the entire house is the course (no fall damage). 
Rogue-like MMO in which each enemy is another player. When you defeat an enemy you level up to a stronger enemy, but when you die you are set back 3 levels. 
A side-scroller/2D Sims-like game set in Howl’s Moving Castle. The aim is to keep the engine running and the castle walking, while adding new rooms and keeping the inhabitants happy. 
Underwater exploration board game using a tiered tower with multiple platforms, of which the top layer is the water surface and the tiers below are the depths. 
Turn-based combat system in which each character selects an action, after which all actions simultaneously take place in a custom cinematic. 
Sci-fi tabletop RPG in which you hack corporations. However, their security systems are complex OS that form entire worlds with different themes; including mechanics, objectives, and even laws of nature. 
Zelda-inspired simulation game in which you play a god shaping the planet, adding terrain and monsters, where NPC-heroes go on adventure and autonomously create settlements, create tunnels, and sail out to other lands. 
Three-dimensional Pictionary; a set of uniquely shaped tiles that attach to each other in different ways. The host adds tiles to his creation, and the first player to guess the creation wins. 
Cooperative game in which each player uses his own mobile device. The player has different panels and list of tasks that must be performed before the time runs out. The twist, each listed task can only be performed by another players. 
Heist game in which each player creates his own level, with guards, traps, security cameras, and hackable computers, which other players must solve in the least amount of steps. 
Narrative driven card game in which each player’s deck provides a story for the opponent’s character, with obstacles to overcome, characters to meet, and mysteries to solve. 
