O2 Trainer

Sanity meters add immersion until they soft-lock your game. No Sanity Loss keeps the meter pinned so you can stare into the void as long as you need to solve that puzzle. Horror games with limited save tokens create artificial tension. Unlimited Saves removes that restriction so the scares come from the game design, not from save-scarcity anxiety. Flashlight batteries are the real final boss in horror games. Infinite Flashlight Battery means you never have to fumble in the dark during the most intense sequences.

O2 Overview

A short deep-sea horror game where you explore a dark and mysterious ocean, photograph strange discoveries, and uncover what lurks beneath the depths.

Official Steam page: O2 on Steam — published by Beyond StarZ.

Between sessions of O2, check out HYPERFIST Trainer — a fan-favorite download from the same category.

Expert Tips

• If Windows Defender deletes the exe on download, add the folder to exclusions before extracting the archive.
• If the trainer requires .NET 6.0+, install the runtime from Microsoft’s official site — not from third-party mirrors.
• Some games throttle frame-rate when alt-tabbed. Switch to Borderless Windowed mode in video settings for smoother trainer interaction.

Screenshots

What Players Are Saying

“I test every trainer on a throwaway save first. This one has never corrupted a single file.”

— SafePlayer101, verified download

“Instant Craft removed the worst part of the game for me. Now I actually enjoy the building loop.”

— builderBob_7, verified download

Quick Answers

Will this work on a cracked copy?

No. Only the official Steam release is supported. Cracked copies have shifted memory offsets.

Is the download safe?

Trainers modify game memory, so antivirus software often flags them heuristically. Scan any file yourself before running it. The detection is behavioral (memory writes), not malware.

Can I use multiple cheats at the same time?

Yes — all options are independent and can be stacked. Avoid combining speed cheats, which can skip collision triggers.

Is this the same as Cheat Engine?

Similar concept, simpler execution. This trainer abstracts pointer scanning behind pre-built hotkeys — no manual setup needed.

Why This Build?

Hex-editing save files gives you similar results but risks permanent save corruption. This trainer modifies values in live memory, meaning your save file on disk stays untouched and you can revert changes by simply closing the trainer.

Save editors modify data at rest; this trainer modifies data in motion. The advantage is real-time feedback — toggle God Mode and see the effect immediately, without reloading a save.

Trainer Features

This powerful O2 trainer ships with 12 fully working options. Each one is memory-driven and toggled from a hotkey:

• Unlimited Oxygen — For underwater horror sequences — lung capacity meter disabled.
• Invisible to All — Complete stealth mode — no enemy can detect your presence.
• No Footstep Noise — Enemy detection relies only on line-of-sight, not audio.
• God Mode (Companion) — NPC survivors and allied characters take zero damage.
• Kill Monster Button — Instant-kill the currently active boss or stalker enemy.
• Slow Game Time — Reflex-based slow motion toggle activated on demand.
• Teleport to Exit — Fast-travel to the chapter or level exit point.
• No Death Screen — Skips fail-state cinematics and restarts from last checkpoint.
• Max Flashlight Range — Torch beam range and brightness maxed for full visibility.
• Freeze Chase Timer — Pauses all escape sequence countdown timers.
• Unlimited Keys — Lockpick and key item count never drops below maximum stock.
• Unlimited Inventory — Bag and pocket capacity caps completely removed.

Quick-Start Steps

1. Download the archive from the link below.
2. Right-click the file and extract with 7-Zip or WinRAR.
3. Temporarily disable your antivirus or whitelist the extracted folder.
4. Launch O2 and load any save.
5. Alt-Tab out, right-click the trainer exe and choose “Run as administrator”.
6. Back in-game, press the listed hotkeys (F1, F2, F3…) to toggle each option.
7. Avoid alt-tabbing repeatedly while cheats are active — some toggles reset on window switch.

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