Lost Labyrinth

Lost Labyrinth is a coffeebreak dungeon crawling roguelike game. It follows the standart fantasy roguelike formula, but also has some interesting features. It was released in 2004, and the last update came out in 2016.

Plot
A necromancer named Mithrax created Lost Labyrinth and buried there nine pieces of Staff of the Last Covenant. You must find them. The end.

Why It Rocks

 * 1) The game is positioned as a game with "relatively short gameplay (between 10-40 Minutes)" but in fact it means that you will die after 10-40 minutes. To beat the game you need to either pass 150 levels of dungeon or collect all 9 pieces of Staff of Last Covenant (on average, you find one piece per 10 levels). By the way, each next level is bigger than previous.
 * 2) The character creation screen has 151 perk to choose from! Of couse, this provides a lot of replay value.
 * 3) Up to four players can play via hotseat, each controlling his own adventurer. Or you can control a party of adventurers by yourself.
 * 4) No annoying experience grinding. You get level-ups for descending into next level and in several other ways. Though you can pick a perk which allows you to upgrade your max HP or mana for killing enemies.
 * 5) You need to constantly look for food, water, sources of light and weapons to replace broken ones (or repair them).
 * 6) A weird gameplay feature: your enemies don't move. This also means that an enemy who stands in your way will never go away.
 * 7) Nice graphics and art.
 * 8) Good music.
 * 9) There are mode with saves and permadeath mode.
 * 10) You can play using keyboard plus mouse, keyboard only or mouse only.
 * 11) The free version of the game is not too inferior to paid version, you can enjoy the game without buying it.
 * 12) Online leaderboard.

Bad Qualities

 * 1) Very unbalanced perks. Some of them are mostly useless, while some are overpovered or absolutely necessary, like "Cartography" which allows you to see a level map (without it finding an exit at deeper levels is terribly hard).
 * 2) Playing with more than one entity (a party of heroes or a hero with mercenaries or summoned creatures) is not as pleasant as with a solo adventurer; switching between entities after every move annoys a bit.
 * 3) Terribly amateur looking prologue screen. And even the word "Prologue" is misspelled as "Prolouge"!
 * 4) Mouse doesn't work properly in windowed mode. And the game uses windowed mode by default, so you will have to switch to fullscreen mode using your keyboard.
 * 5) The game's website states that it is "The best Roguelike on the Net". They should learn how to be modest.