The Sierra Network Startup-Kit

The Sierra Network later rebranded as the ImagiNation Network, was an online service launched in 1991 by Sierra On-Line. It offered subscribers a unique online space to play games and socialize, billing itself as a "cyberspace theme park." This service was the first exclusively focused on online gaming and was among the early adopters of online avatars, laying the groundwork for future gaming communities.

The Town Hall: Offered administrative services, including billing details and an events calendar.

The Mall: The Mall initially offered physical copies of Sierra games and branded T-shirts via mail-order. The aim was to eventually evolve into a digital distribution platform for Sierra games.

The Post Office: Allowed members to send and receive email.

The Clubhouse: Provided access to traditional games such as chess, checkers, bridge, and backgammon.

SierraLand: All-ages experiences with games like miniature golf, paintball, the Red Baron flight simulator, and Graffiti, a program for drawing and creativity.

LarryLand: Catered to adults with a theme park inspired by the Leisure Suit Larry series, offering casino games and a virtual bar for socializing. The platform encourages playful interactions like electronic kisses, under the watchful eye of system operators to maintain appropriate conduct.

The Shadow of Yserbius: A role-playing game set in Mount Yserbius' dungeons, filled with monsters and puzzles. It combined traditional RPG elements like turn-based combat and character development, paving the way for future online games with its mix of gameplay and social interaction.