GURPS attempts to satisfy campaigns across pretty much every genre, in pretty much every time period. The standard basic characters/campaigns books, plus perhaps Magic, Fantasy, and Banestorm make life pretty easy for a fantasy GM, while the basic books plus perhaps UltraTech, Infinite Worlds, Space, BioTech, or Traveller Interstellar Wars make life easy for a sci fi GM. Until now, it has been a bit problematic running a campaign set between the civil war and near-tech cyberpunk.

High Tech addresses this time period. It concentrates on ironmongery, with real world examples of weapons and ammunition as used throughout history. It includes dates of introduction and wide reproduction for time travel games, and enough information for people generally unfamiliar with firearms to sound the part of their gunslinger characters.

It also has many, many pages of non-weapon/armor equipment, and frankly, that was the part I liked the most. My players enjoyed being able to look up a diving bell, a WW2 tank, and a napoleaonic-era timepiece.

For what it is worth, my minimal set of GURPS books is the main two, plus magic, ultra tech, and now high tech. With those, I can generally convert items from other systems or wing it, regardless of era.

GURPS一直以来都试图满足玩家几乎所有类型的活动。标准的基本角色/战役书，加上魔法、幻想和Banestorm，使幻想GM的生活变得非常容易，而基本书加上超技术、无限世界、太空、生物技术或Traveller星际战争，使科幻GM的生活变得容易。到目前为止，在内战和近乎科技的赛博朋克之间开展活动还是有点问题的。

高科技解决了这个时期的问题。它集中在铁器方面，有历史上使用的武器和弹药的真实例子。它包括了时间旅行游戏的引进和广泛复制的日期，以及足够的信息，使一般不熟悉枪械的人能够听出他们的枪手角色。

它还有很多页关于非武器/盔甲装备的内容，坦率地说，这是我最喜欢的部分。我的玩家们很喜欢能够查到潜水钟、二战坦克和拿破仑时代的计时器。

就其价值而言，我最小的一套GURPS书是主要的两本，加上魔法、超技术，以及现在的高科技。有了这些，我一般可以从其他系统中转换物品，或者不分时代地进行转换。