12 Free Steam Deck Battery and OLED Verification Tools for Fest Demos (2026)
Trend-timed <span style="font-weight: 600;">June 2026</span> <span style="font-style: italic;">OLED Deck idle power</span> bookmark list—15-minute menu battery smoke, <span style="font-style: italic;">idle_power_smoke_pass</span> on <span style="font-style: italic;">menu_fps_cap_receipt_v1.json</span>, installed Steam builds only. Distinct from <a href="https://gamineai.com/resources/18-free-steam-deck-performance-and-compatibility-testing-resources-for-indies-2026">compat + Proton perf testing</a>; pairs <a href="https://gamineai.com/help/steam-deck-oled-idle-menu-battery-drain-despite-menu-fps-cap-fix">idle drain troubleshooting fix</a>.
Steamworks — Steam Deck documentation
Platform DocsOfficial handheld expectations—fest reviewers test installed demos on Deck; battery idle is separate from Verified glyph passes.
Start here: partner QA language
Steam Deck Verified — compatibility criteria
Platform DocsVerified vs Playable—default launch, readability, input; does not replace idle-menu Wh/min smoke.
Use for: cert rows beside power gate
MangoHud
Open SourceIn-game overlay—FPS, frametime, GPU%, and power hints on Deck/Proton; log idle menu for 15 minutes with cap enabled.
Pro tip: screenshot overlay at minute 0 and 15
Gamescope
Open SourceCompositor frame limit—enforce menu cap when engine ignores targetFrameRate on 120 Hz OLED.
Use for: last-resort cap verification
Deck tuning UI—TDP, refresh, and power profiles; compare idle menu vs gameplay session drains.
Best for: repeatable fest-week profiles
GamineAI — 14 Free Unity fest demo menu FPS tools (2026)
Site ResourceFPS cap stack—vSyncCount + targetFrameRate; battery list assumes cap code exists—fix FPS before arguing Wh/min.
Start here: Unity teams
Why now spine—Deck battery + coil-whine trust; menu_fps_cap_receipt_v1.json policy defaults.
Read first for 60 FPS menu norm
Power smoke lane—15-minute idle Wh/min gate when overlay shows 60 FPS but fan still spins; idle_power_smoke_pass.
Use when: FPS cap passes, battery fails
Compat sibling—Proton, Input, and frame pacing matrix; not idle OLED battery verification.
Run after power smoke passes
Glyph lane—run after menu FPS + battery idle hold; 1280×800 prompts assume stable pacing.
Pair with: glyph-table tutorial
Promotion gate—add idle_power_smoke_pass beside menu_fps_cap_receipt_v1.json on BUILD_RECEIPT.
Pro tip: 15-minute idle on installed Steam build
Receipt home—separate compat row from menu_idle_power column for fest partner packets.
Use for: CI + cert intake