Chronic logic the developers of Gish and other GNU/Linux games, released the second add-on to their freeware strategy and tactics game Zatikon.
Despite the simple graphics the game is very deep and addictive, you can play the game and if you like it and want more units, you can buy the add-ons which add many new strategies and tactics.

About Zatikon
Welcome to Zatikon. Construct your army out of creatures as varied as the magnificent dragon or mighty warrior to the evil necromancer or holy Templar. Destroy your opponent with a heavy cavalry charge or defeat their army before they can reach you with archers, crossbowmen and mages. Use an unlimited number of strategies to defeat your opponents and earn gold to increase the might of your army. Play Zatikon for free and start building your armies today!

Zatikon is a free turn based multiplayer tactics game featuring over 30 unique units with over 80 additional units available in add-on packs. Build your army and defeat your opponent. With an almost unlimited number of possible strategies at your disposal Zatikon highly addictive and fun.
Zatikon includes online player ranking and several extra game types including co-op, single player and random army mode.

Multiplayer match making
Play single player, vs. or co-op games
Online ranking system
Unlock over 30 units to use in your army
Unlimited strategies and tactics
Each unit is different with unique abilities and powers
Many types of units including Mages, Horsemen, Shapeshifters, Siege units, Structures and more!
Stylized graphics for each unit
Zatikon features game play simliar to Chess and Magic (MTG).
Available for Windows, Mac OS X and Linux: Buy once, and you can run the game on any of these systems!

Legions
Zatikon:Legions is an add-on for the free game Zatikon. Legions adds thirty new units to Zatikon. Feel the rage of the barbarian, haunt your opponents with the possessed or take justice into your own hands with the confessor. Each unit has unique powers and abilities to provide even more tactics to a game already rich with strategies for victory. These units can be used in single player, vs, and co-op games.

Legions features:
Adds 30 new unique units to Zatikon
New units can be used in single player, vs. or co-op games
Online ranking system
Even more new strategies and tactics
Each of the new units has different abilities and powers

Screenshots

Video

Thanks for our usual contributor Grzegorz Budny !

Links
Chronic logic
Zatikon