Total Annihilation
"Total Annihilation" was one of the first RTS games to feature radar that showed enemy units within its radius on the minimap. This added an additional element of electronic warfare to the game: players could construct radar jammers that prevented units in a small radius around them from appearing on radar. Mobile radar jammers could be used to create surprise attacks, necessitating the deployment of scout units on a regular basis to reveal said units visually. In addition, radar jammers could disguise the presence of visually cloaked units, such as the commander or land mines. Radar fields rendered cloaked units detectable; a radar jammer could make said units undetectable until the radar jammer was destroyed. "Total Annihilation" was also one of the first RTS games to point the way towards battlefields with hundreds and thousands of units. Previous games could field a hundred units or so. However, Total Annihilation initially permitted 250 units per side which was later patched to 500. A third party patch allowed up to 5,000 units per side.
Europa Barbarorum
Although set in a similar historical period and geographical area to the unmodified game (covering a timespan of 272 BC to 14 AD, compared to the original game's 270 BC to 14 AD), "Europa Barbarorum" is a total conversion modification as it replaces all the aspects of the original "Rome: Total War" game that can be replaced, such as unit models, statistics and the musical score. The modification has received favourable reviews in a number of computer gaming magazines. "PC Gamer" magazine ranks "Europa Barbarorum" as the best mod for any of the seven "Total War" games released for the PC at that time.