- Eidos formed as a video compression R&D company. This business still forms the core of the Eidos Technologies entity.
- Charles Cornwall joins the company as Chairman.
- Eidos moves into the entertainment software market with the acquisition of Domark and obtains a full listing on the London Stock Exchange. Charles Cornwall appointed as CEO, Ian Livingstone as Chairman.
- Eidos strengthens its position in the industry with acquisition of CentreGold plc, which includes US Gold, Core Design (developer of Tomb Raider) and CentreSoft. Offices in US, France and Germany obtained as part of the acquisition. The distribution arm CentreSoft is sold to a management buyout as part of the strategy of on developing and publishing.
- Tomb Raider is released on Saturn
- 10 year publishing and development deal signed with Ion Storm
- Eidos sets up Japanese office in Tokyo.
- Eidos acquires US developer Crystal Dynamics for $47m. The deal gives Eidos the rights to franchises including Soul Reaver and Gex franchises.
- Eidos sets up office in Singapore
- Championship Manager 3 released and becomes the fastest selling game in UK PC history (55,000 copies in first 2 days)
- Jeremy Heath-Smith appointed as Eidos' Global Development Director
- Eidos announced the disposal of the majority of its holding in Opticom ASA resulting in a profit of £84 million. Eidos also reported a material downturn in trading due in large part to adverse market conditions across all major territories and a general slowdown in consumer demand.
- Oscar winner, Angelina Jolie, to star as Lara Croft in the live action film "Tomb Raider" with Simon West directing for Paramount Pictures. The film began principal photography in Summer 2000 at Pinewood Studios
- Who Wants To Be A Millionaire sets UK Chart History in only its second week of release. The game becomes the first ever title to top the All Format, PlayStation, PC and Dreamcast charts in the same week.
- Two Eidos games win honours at the BAFTA Interactive Entertainment Awards 2000. PC Game of the Year was won by Deus Ex, which was developed by Ion Storm. Sports Game of the Year was won by Sydney 2000, which was developed by Attention To Detail.
- Eidos announces that it has terminated takeover discussions with an unnamed third party. The Board gave the approach serious consideration, but concluded that the terms discussed did not represent fair value for shareholders.
- Who Wants To Be A Millionaire? becomes the UK's Christmas number one
- Glassworks post-production house leaves the Eidos group via a management buy-out.
- Who Wants To Be A Millionaire? is officially the UK's fastest selling game to reach one million units sold.
- Lucozade Energy is temporarily renamed 'Larazade' in a promotional tribute to Tomb Raider heroine, Lara Croft
- Eidos signs a deal with Cereal Partners for an on-pack demo of Who Wants To Be A Millionaire? The demo is to appear on over 3.4million packets of cereal in the UK.
- Who Wants To Be A Millionaire? becomes the biggest selling UK game of all time. Eidos is also responsible for the UK's second and third biggest selling games - Tomb Raider II and Tomb Raider respectively.
- Championship Manager: Season 01/02 announced for the Xboxä video game system from Microsoft
- Eidos announces TimeSplitters 2, the sequel to Free Radical Design's hugely successful PlayStation 2 launch title TimeSplitters.
- Warren Spector's award-winning Deus Ex is announced for PlayStation 2.
- Eidos announces a 1 for 3 rights issue at 155p per share
- Lara Croft: Tomb Raider movie launched in the US. The film takes a massive $48.2m in its first weekend of release.
- Eidos announces that its Japanese office will start to publish console games from November 2001.
- Hitman 2: Silent Assassin, sequel to the BAFTA award nominated Hitman: Codename 47, announced for PC.
- Eidos and Celador International announce that the UK’s biggest selling video game 'Who Wants To Be A Millionaire?' is to appear on PDA (Personal Digital Assistant) devices.
- Eidos announces 'Fresh Games' - a new brand specifically devoted to bringing high-quality Japanese video game titles to the worldwide market.
- Dutch model Jill de Jong appointed as the new face of computer game heroine, Lara Croft.
- TimeSplitters 2 announced for Xbox and GameCube.
Jul 31, 2003:
- Eidos Interactive re-brands itself, becoming Eidos Inc.
Oct 28, 2003:
- Eidos Interactive announces a New Media Division, under the lead of Simon Protheroe to develop games not only for mobile gaming but also for online gaming, gaming on platforms including PDAs and interactive TV, games on demand services, and electronic software distribution.
Oct 29, 2003:
- Eidos signs a development deal with Guerrilla, the Amsterdam-based studio formerly known as Lost Boys Games, for a new third person action game.
Mar 04, 2004:
- Eidos enters a conditional agreement to acquire IO Interactive, the Danish based studio.
May 20, 2005:
- SCi completes Eidos takeover.
Apr 21, 2009:
- Eidos Inc. is taken over by Square Enix Holdings Co. Ltd.