LINES98. org. ua is an online gaming website focused on free browser-based ball and line puzzle games.

Its main attraction is Lines 98, a version inspired by the classic Lines format and presented with graphics in the style of Lines 98. Players can choose how newly appearing balls are shown, undo one move, or restart a game. The site also features other takes on the genre, including Lines Absolutist, described as a version from the game company Absolutist.

It lets players change ball skins and adjust difficulty by changing the number of grid cells, and includes a Live button. Another featured ball game uses a futuristic visual design, sound effects, and combo and mega-combo effects; unlike standard Lines, its objective is to form squares rather than lines. The site groups these experiences alongside colorful, rainbow, and newer Lines variants, with options to play online and references to downloading ball games.

It also encourages visitors to add the site to their favorites