Poison swamp locations have long been a staple of soulslike games produced under FromSoftware and therefore have been sources of infamy for many players due to their unique sources of ingame difficulties.[9] Blighttown in particular has been referred to as an infamous swamp location of the soulslike games, with Caelyn Ellis of Eurogamer calling it "the first taste of poison swamps" for many players. She expressed her opinion that it was less the swamps themselves that made the location grueling but more the preceding mazelike areas that are dark, contain dead ends, and are full of hostile enemies like snipers that shoot poison at players.[10] The GamesRadar writer Austin Wood referred to the Dark Souls location as a "pitch-perfect combination of insects, poison, and dirty water, all steeped in an inimitable air of decay," that has been the frequent subject of memes by players.[8] Kyle Gratton of Screen Rant referred to Blighttown as both aptly named and an introduction to the poison swamp areas in soulslike games for many players, that it was an exceptionally challenging area for first-time players because of a combination of its darkness, difficult navigation, tight and dangerous structures, and enemies that can inflict poison and slowness to their characters.[11] Retro Gamer magazine stated that the level was both the game's worst area and "one of the most frustrating in gaming history", describing it as "horribly designed" and praising the "back door" sequence break that allows players to partially skip it.[12]
Jeffrey Parkin, writing for Polygon, stated that Blighttown is "all kinds of awful" due to its "equal parts dangerous, aggressive, and annoying" enemies and its highly hostile environment. He also noted that its difficulty can, as a result, mislead people to thinking that it is a complex and important location when it primarily serves as a means to progress through the game up to the second Bell of Awakening.[2] Brenna Hillier of VG247 noted that it was a nightmarish area to the point of being hated by many players because of the frequency of ranged enemies inflicting poison and player character vulnerability to fatal fall damage from the location's platforms. However, they, citing an analysis video on Blighttown by Hamish Black on his YouTube channel "Writing on Games," argued that it was a well-designed game level. Black explained that both the subversion of usual game design by rewarding players for descending through as opposed to ascending through it and the lack of large payoffs at the level's end connecting to the location's wider themes help to make it memorable.[13]
Blighttown was also widely negatively received for being a source of poor ingame performance rates from dropped frame rates in the original releases of Dark Souls,[8][11] with Nate Hohl of VGR stating that the frame rate drops from the area were at "unplayable levels".[14] Eurogamer writer Thomas Morgan argued that the low frame rates of the level, especially at the elevator system areas, made the location highly frustrating to the point of being subject to widespread criticisms. The frame rate drop at Blighttown was fixed in the 2018 release of Dark Souls: Remastered, meaning that the game could run the level at high frame rates at different gaming platforms. Morgan highlighted that the remastered edition helped to showcase the "ambitious" game level design by FromSoftware as exemplified by Blighttown.[15]
Dimitrios Pokkias, for an academic journal article, claimed that Blighttown served to test players on whether they were willing to challenge themselves towards a descension through the depths. He also said that it intensified feelings of dread and isolation because of its oppressively tight and uneven labyrinth design, containing relentless enemies and toxic environments that further stifled any feeling of safety for the player and connecting to the wider theme of a collapsing world beneath the surface. Pokkias pointed out that players would have been met with immense feelings of relief after escaping the area as they again gain access to their Firelink Shrine hub.[16]