deduction

In Two Rooms and a Boom – a social deduction/hidden role party game for six or more players – there are two teams: the Red Team and the Blue Team. The Blue Team has a President. The Red Team has a Bomber. Players are equally distributed between two rooms (i.e., separate playing areas). The game consists of five timed rounds. At the end of each round, some players will be swapped into opposing rooms. If the Red Team's Bomber is in the same room as the President at the end of the game, then the Red Team wins; otherwise the Blue Team wins. Lying encouraged.

In Werewords, players guess a secret word by asking "yes" or "no" questions. Figure out the magic word before time is up, and you win! However, one of the players is secretly a werewolf who is not only working against you, but also knows the word. If you don't guess the word in time, you can still win by identifying the werewolf!

To help you out, one player is the Seer, who knows the word but must not to be too obvious when helping you figure it out; if the word is guessed, the werewolf can pull out a win by identifying the Seer!

A free iOS/Android app provides thousands of words in hundreds of categories at various difficulty levels, so everyone can play.

This Clue-style game comes with a game board, Fluffy Folder (for holding the solution), 2 special dice, 6 wizard hat pawns, 1 ghost pawn, 10 Hogwarts event cards, 6 Character cards, 6 Magic cards, 9 Room cards, 2 Summary cards, and a Check List Pad.
The object of the game is to deduce which student cast which forbidden spell in which room in Hogwart's School. Once a player thinks he/she knows the solution they must travel to the difficult to reach third floor where Fluffy guards the answer.
While most of the mechanics of play will be familiar to any player of the classic Clue, a few new elements in the game may require a slightly different approach to play.

Codenames Duet keeps the basic elements of Codenames — give one-word clues to try to get someone to identify your agents among those on the table — but now you're working together as a team to find all of your agents. (Why you don't already know who your agents are is a question that Congressional investigators will get on your back about later!)

To set up play, lay out 25 word cards in a 5×5 grid. Place a key card in the holder so that each player sees one side of the card. Each player sees a 5×5 grid on the card, with nine of the squares colored green (representing your agents) and one square colored black (representing an assassin). The assassin is in different places on each side of the card, and three of the nine squares on each side are also green on the other side!

Collectively, you need to reveal all fifteen agents — without revealing either assassin or too many innocent bystanders — before time runs out in order to win the game. Either player can decide to give a one-word clue to the other player, along with a number. Whoever receives the clue places a finger on a card to identify that agent. If correct, they can attempt to identify another one. If they identify a bystander, then their guessing time ends. If they identify an assassin, you both lose! Unlike regular Codnenames, they can keep guessing as long as they keep identifying an agent each time; this is useful for going back to previous clues and finding ones they missed earlier.

In Goths Save The Queen, two two-player clans fight to save the Queen hidden in the middle of the table. Each clan is composed of one player giving orders (the King) and another one trying to understand which order has been given (the Warchief).

To give an order, the King chooses a card and flips it onto the table to reveal two orders on its back, with no clue as to which is the right one. The Warchief checks the battlefield, then tries to choose the right order with a card in hand. When both clans have chosen their cards, all of them are revealed, and if both cards match on a clan, then the order is carried out. Some examples of orders: loading the catapult, firing with the catapult, progressing toward the Queen, looking at hidden cards in the middle to find the Queen, and avoiding traps...

Of course, within a clan it is absolutely prohibited to make any sign or say anything to help the partner to guess which order is intended.

When playing 1-vs-1 or 1-vs-2, the game is a bit different: The single player team cannot play the same order twice, one turn after another.

With multiple copies of Goths Save The Queen, you can compete in a 3-vs-3, 3-vs-4 or 4-vs-4 format.