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pythrees is the clone of Threes!, which is $1+2=3$, $3+3=6$, $6+6=12$, and so on. If you have played 2048 game, you can find the similarity, both 4x4 grid, and merging with same numbered tiles, except the first merge of Threes!

The visual design is fairly simple, only a few colors and plain ASCII, but it does tell you what the next tile will be sliding in. It doesnt keep high scores.

pythrees was created by Yuan Cao on 2015-03-01, written in Python 2 with ncurses under the MIT License, currently git-e3209a5 (2015-12-10).

Cangkufan is a Sokoban clone with 50 puzzles by Hiroyuki Imabayashi.

The controls include mouse and keyboard, you can undo or redo, replay best pushes or steps, which are recorded. The Cangkufan is the Chinese Pinyi of the Japanese (Kanji) title, in short, the Chinese pronunciation of 倉庫番.

Cangkufan was created by Pluto Yang in 2003, written in C with GTK+2 under the GPLv2, currently version 0.2 (2010-09-17).

Unintentional Christmas Tree is a fun and small arcade action puzzle game. You just lay the same color blocks on top of each other.

It has two modes, easy and hard. In hard mode, you cant make any mistakes, e.g. red on green, or that would be game over. In easy mode, lets just say that you can break this tree really easily.

Unintentional Christmas Tree was created by Joseph Lansdowne on 2012-02-27, written in Python 2 with Pygame under New BSD License (3-clause), currently git-da562ee (2012-02-27).

The question is not red or green but left or right.

nsudoku is a Sudoku game, of course. It doesnt have any fancy display, no menus, not much stuff, just the board and numbers plus a clear help message on the left side.

nsudoku was created by Tin Benjamin Matuka in 2008, written in C with ncurses, under the MIT License, currently version 1.3 (2015-06-23).

The Ncurses Sudoku System is a Sudoku clone, and it looks like it means business, the interface looks as if its for system configuration.

Screentshot of nsuds (video for a level played)

CLines is a Color Lines clone in console.

You use hjkl to move and Space to pick up chip and replace it somewhere else, or you can use mouse to click. The board resizes to fit into terminal size as best as it can, you can see in this video.

Its a simple puzzle game to play, all you do is to line up at least five chips of the same color in a straight line, horizontal, vertical, or diagonal, one of them will do. But if you cant form a line after each move, three more random chips will be placed.

When I first played, I thought you can only move a chip in a straight line, that is only go in one direction, didnt realize as long as the path is clear, you can move a chip to anywhere. I hardly got past 40 points, it was hard. I almost nicknamed this game as Cussing Lines.

CLines was created in 2002 by Pawel S. Veselov, written in C with ncurses under the GPLv2, currently git-410ae26 (2015-11-11, post v1.0.5 (2015-06-19)).

Dr. Mario or BUGS is a clone of Nentendos Dr. Mario, well sort of.

You fix bugs instead of eradicating deadly viruses. From red, yellow, and blue viruses to A, L, and S bugs, but you are still a Dr., just not a physician one.

The controls are hjkl to use in options to change level and speed, or in game for moving the piece around. as to rotate the piece. p to pause or resume the game.

This clone was made in 1991 by SRN, according to the comment, released under the name BUGS or BUGS I as version 1.3, then in 1992, Scott Noecker and Ken Corey released under Dr. Mario and for Linux.

Dr. Mario was born on 1991-07-10 and has been placed in public domain, is written in K&R C, currently hg-0541a33a647e (2015-11-14, post 1992-06-15).