When comparing Half Life 2 vs Space Marshals, the Slant community recommends Space Marshals for most people. In the question“What are the best Android games for Nvidia Shield?” Space Marshals is ranked 7th while Half Life 2 is ranked 8th. The most important reason people chose Space Marshals is:
Space Marshals has a loot reward system where in after the player completes a level, depending on how high their rank is for completion allows for a loot reward of corresponding level.
Specs
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Pros
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.
Pro Loot reward system
Space Marshals has a loot reward system where in after the player completes a level, depending on how high their rank is for completion allows for a loot reward of corresponding level.
Pro Stealth-centric
Space marshals gameplay is built around stealth gameplay where the play sneaks around pre rendered stages trying to complete set mission requirements. There are rocks that can be used for distracting enemies as well as plenty of weapons including grenades.
Pro Controller support
Space Marshals has built in HID and Nvidia Shield controller support.
Cons
Con Touch controls not as accurate as they need to be
Twin stick shooter style game do not often control great with touch screens due to the lack of tactile feedback, while Pixelbite tries to mitigate this issue as much as possible, it is still a problem in some places.