When comparing Arma Tactics vs Half Life 2, the Slant community recommends Half Life 2 for most people. In the question“What are the best Android games for Nvidia Shield?” Half Life 2 is ranked 8th while Arma Tactics is ranked 36th. The most important reason people chose Half Life 2 is:
A total conversion which does not directly use any assets from Half Life 2 can be played without even purchasing the base game.
Specs
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Pros
Pro A demo is available
A demo is available on the Play store.
Pro Many mods will run with just the free Source Engine installed
A total conversion which does not directly use any assets from Half Life 2 can be played without even purchasing the base game.
Pro Supports total conversions
The Source SDK allows mod creators to build new game content from the ground up, leaving no trace of Half Life 2.
Pro Some Half Life 2 mods were later released as stand-alone games
Examples include Garry's Mod, Dear Esther, and The Stanley Parable.
Cons
Con Has in-app purchases
Despite being an upfront paid game it also includes in app purchases that range from $0.99 - $2.95 per item.