Bringing together a large group of adults for a party can make it difficult to ensure that everyone feels included and participates in the activities. By providing games for guests to play, everyone can feel welcome and get to know people they may not have spoken to otherwise. Use party games as a way to break the ice, or wait a couple of hours and then introduce them after people have had a chance to chat.
Have everyone stand up and close their eyes. While everyone's eyes are closed, tap someone on the shoulder to indicate that they will be the "murderer" for this round. When you return to your original position, ask everyone to open their eyes again. Ask the guests to mingle and shake hands while greeting each other and giving each other their names. The "murderer" will scratch people's hands (although it should be known that he does not have to do this to everyone he meets) discreetly if he intends to "kill" them. The person being "murdered" will count to five, scream and then fall on the floor. The game continues until someone can correctly guess the "murderer." If the word "murder" is offensive for your group, you can substitute it for "mole", "vampire" or "bee."
Never Have I Ever
Count the number of people in your group and set up chairs in a circle for the number of the individuals in the group minus one. The person in the middle starts the game by saying "Never have I ever...." and says something they have never done before. Everyone in the group that has done that particular thing stands up and changes places with someone else who gets up. The person who is left without a chair goes to the middle and makes the next statement. If only one person has done what is being mentioned, he is the person in the middle by default.
Break everyone down into smaller groups (from two to six, leaving two to three people out to judge), preferably pairing up people who did not know one another before the party. Provide each group with a pair of scissors, a garbage bag, tape and some newspaper. Give your groups about 15 to 20 minutes to make an Evening Gown out of their supplies. When the time is up, ask the groups to "model" their creations while you and two to three other people judge the best outfit.