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Welcome, user. This [type:def] tower defense training module simulates a network defense scenario. Hostile data is attempting to escape the system. Deploy defensive nodes, type commands to control them, and secure the network - your only weapon is your keyboard!

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About type:def

This program simulates a hostile network environment, presented as a tower-defense game controlled by typing. Your task is simple: stop the attackers from stealing data out of the system. Build defenses, issue commands, and keep the network stable at all costs.

Main features

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Typing as gameplay Deploy, upgrade and configure your defense processors all with typed commands.
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Active defense Building a robust network won't be enough against the more clever attacks - you'll need to stay on your toes and use special commands to trigger instant routines that nuke enemies, create firewalls, and more...
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Distinct processor types The module offers you a variety of tools: versatile processors, specialised units and numerous upgrades to boost your network and defend against the attackers!
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Hacker-inspired presentation Glitchy UI, terminal-like feedback, and an artificial assistant guiding you through the simulation create a cohesive cyber atmosphere.

This is not a passive defense system: the network will not protect itself.

So, user - are you up to the challenge?

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.

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