1. Research about steampunk
Steampunk is basically something that was set in the Victorian times but with
advanced technology an example of this is the late 2011 movie Sherlock Holmes
Game of shadows it is set in Victorian times but has advanced machinery and
mechanics in it such as the experiments that are handed out over the course of
the film and the old rusty equipment at Scotland yard.
Take place in the Victorian era but include advanced machines based on
19th century technology (e.g. The Difference Engine by William Gibson and
Bruce Sterling);
Include the supernatural as well (e.g. The Parasol Protectorate by Gail
Carriger);
Include the supernatural and forego the technology (e.g. The Anubis
Gates by Tim Powers, one of the works that inspired the term ‘steampunk’);
Include the advanced machines, but take place later than the Victorian
period, thereby assuming that the predomination by electricity and petroleum
never happens (e.g. The Peshawar Lancers by S. M. Stirling); or
Take place in another world altogether, but featuring Victorian-like
technology (e.g. Mainspring by Jay Lake).

2. Victorian times
The Victorian eraof British history was
the period of Queen Victoria’s reign from
20 June 1837 until her death on 22
January
1901.
The
Victorian
Era style
of clothing, however, ended in 1912.[1] It
was a long period of peace, prosperity,
refined sensibilities and national self-
confidence for Britain. Some scholars
date the beginning of the period in terms of sensibilities and political
concerns to the passage of the Reform Act 1832.

3. Examples of steampunk games
Bioshock Infinite